Plant community types of sand dunes and sand plains in selected areas of the boreal natural region - Alberta. Alberta Sustainable Resource Development. (The Company, 2005)

Plant explorations : ornamentals in the Netherlands, West Germany, and Belgium - Meyer, Frederick G. 1917 -2006 (Agricultural Research Service, U.S. Dept. of Agriculture, 1963)

Plant indicators: the relation of plant communities to process and practice - Clements, Frederic E. (Frederic Edward), 1874 -1945 (Carnegie Institution of Washington, 1920)

Plant inventory - United States. Agricultural Research Service. (Northeastern Region, Agricultural Research Center-West, 1966)

The plant life of Maryland - Shreve, Forrest, 1878 -1950 (Johns Hopkins Press, 1910)

Plant list, Newfoundland, July-August 1921 - Mackenzie, Kenneth K. (Kenneth Kent), 1877 -1934 (1921)

Plant list of Waterloo County - Montgomery, F. H. (Frederick Howard), 1902 - (1943)

The Plant world - Plant World Association. (Plant World Association [etc.], 1905)

The Plant world - Plant World Association. (Plant World Association [etc.], 1909)

The Plant world - Plant World Association. (Plant World Association [etc.], 1912)

The Plant world - Plant World Association. (Plant World Association [etc.], 1918)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1965)

Plants & gardens - Brooklyn Botanic Garden. (Brooklyn Botanic Garden, 1985)

Plants of James' Bay collected by David Potter - Potter, David, 1894 -1967 (1929)

Plants of Labrador and Baffin Land coll. C.S. Sewall, 1927-'28 - Sewall, Charles Summers, 1875 -1957 (1927)

The plants of Michigan; simple keys for the identification of the native seed plants of the state - Gleason, Henry A. (Henry Allan), 1882 -1975 (G. Wahr, 1918)

The plants of Prince Edward Island - Erskine, D. S. (David Sterling) (Plant Research Institute, Research Branch, Canada Dept. of Agriculture, 1960)

The plants of Prince Edward Island - Erskine, D. S. (David Sterling) (Research Branch, Agriculture Canada, 1985)

Plants of Riding Mountain National Park, Manitoba - Canadian Parks Service. (Research Branch, Agriculture Canada, 1988)

The Polyporaceae of Wisconsin - Neuman, Julius John. (The State, 1914)

Population dynamics and ecology of subarctic shrews - Doyle, David M. (University of Alberta, Dept. of Zoology, 1979)

Population dynamics of island populations of subarctic Clethrionomys rutilus and Peromyscus maniculatus - Burns, Gordon R. (Gordon Russell), 1954 - (University of Alberta, Dept. of Zoology, 1980)

Population response of the northern red-backed vole (Clethrionomys rutilus) to differentially cut white spruce forest - Pacific Northwest Forest; Range Experiment Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1980)

Practical forestry for beginners in forestry, agricultural students, woodland owners, and others desiring a general knowledge of the nature of the art - Gifford, John C. (John Clayton), 1870 -1949 (D. Appleton and company, 1902)

Practical forestry for beginners in forestry, agricultural students, woodland owners, and others desiring a general knowledge of the nature of the art - Gifford, John C. (John Clayton), 1870 -1949 (D. Appleton, 1902)

Practical forestry in the Adirondacks - Graves, Henry S. (Henry Solon), 1871 -1951 (Dept. of Agriculture, Forestry Division, 1899)

Predicting the effect of fire on large-scale vegetation patterns in North America - Pacific Northwest Research Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1996)

Preliminary classification of forest vegetation of the Kenai Peninsula, Alaska - Pacific Northwest Research Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1990)

A preliminary classification of plant communities in the central Parkland natural sub-region of Alberta - Alberta. Alberta Sustainable Resource Development. (Geowest Environmental Consultants Ltd, 2002)

A preliminary classification of the Rocky Mountain shrubland communities of Alberta - Alberta. Alberta Environment. (Alberta Environment, 2000)

Preliminary study of forest conditions in Tennessee - Hall, R. Clifford. (McQuiddy printing company, 1910)

Preservation of natural features and scenic views in New York City - Clarke & Rapuano. (The Department, 1974)

Price list - American Forestry Co. (American Forestry Co, 1914)

Price list - American Forestry Co. (American Forestry Co, 1915)

Price list : fall & spring 1951-1952 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Nepco Lake Nursery, 1951)

Price list, fall 1932 spring 1933 : seedlings, transplants, ornamentals - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Brown Company, Cupsuptic Nursery, 1932)

Price list : fall and spring 1950 - 1951 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Nepco Lake Nursery, 1950)

Price list of tree seeds, Spring, 1957 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (K.J. Braden, 1957)

Price list : spring 1925 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1925)

Price list, spring 1931 : trees, shrubs, evergreens, vines, roses, herbaceous perennials - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Henry Kohankie & Son, 1931)

Price list, spring 1933 : seedlings, transplants, ornamentals - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Brown Company, Cupsuptic Nursery, 1933)

The primeval forest types of southwestern New York - Gordon, Robert B. (Robert Benson), 1901 -1981 (University of the State of New York, 1940)

The principal species of wood: their characteristic properties - Snow, Charles H. (Charles Henry), 1863 - (J. Wiley & sons, 1903)

The principal species of wood: their characteristic properties - Snow, Charles H. (Charles Henry), 1863 - (J. Wiley & Sons; [etc., etc.], 1908)

Principles of American forestry - Green, Samuel Bowdlear, 1859 -1910 (J. Wiley & Sons, 1903)

Principles of American forestry - Green, Samuel Bowdlear, 1859 -1910 (Wiley, 1903)

Principles of animal ecology - Allee, W. C. (Warder Clyde), 1885 -1955 (Saunders Co, 1949)

Proceedings - Nova Scotian Institute of Science. (1866)

Proceedings, 22nd Southern Forest Tree Improvement Conference, June 14-17, 1993, Atlanta, Georgia - Southern Forest Tree Improvement Committee. (National Technical Information Service, 1993)

The Proceedings and transactions of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1906)

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1913)

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1922)

Proceedings, combined meeting of the Western Forest Nursery Associations : Western Forest Nursery Council, Forest Nursery Association of British Columbia, and Intermountain Forest Nursery Association : August 8-11, 1988, Vernon, British Columbia - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1988)

Proceedings, combined Western Forest Nursery Council and Intermountain Nursery Association meeting : August 12-15, 1986, Tumwater, Washington - Intermountain Nursery Association. (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1986)

Proceedings, Conifer Tree Seed in the Inland Mountain West Symposium : Missoula, Montana, August 5-6, 1985 - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1986)

Proceedings : Intermountain Forest Nursery Association : August 14-18, 1989, Bismarck, North Dakota - Landis, Thomas D. (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1989)

Proceedings, Lake States Forest Tree Improvement Conference, August 30-31, 1955 - Lake States Forest Experiment Station (Saint Paul, Minn.) (U.S. Dept. of Agriculture, Forest Service, Lake States Forest Experiment Station, 1955)

Proceedings, land classifications based on vegetation : applications for resource management : Moscow, ID, November 17-19, 1987 - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1989)

Proceedings : National Wilderness Research Conference, current research, Fort Collins, CO, July 23-26, 1985 - Intermountain Research Station (Ogden, Utah) (Intermountain Research Station, 1986)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1911)

Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge - American Philosophical Society. (American Philosophical Society, 1916)

Proceedings of the American Society of Agronomy - American Society of Agronomy. (The Society, 1918)

Proceedings of the Biological Society of Washington - Smithsonian Institution (Biological Society of Washington, 1956)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1921)

Proceedings of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1923)

Proceedings of the Botanical Society of the British Isles - Botanical Society of the British Isles. (1960)

Proceedings of the Davenport Academy of Natural Sciences - Davenport Academy of Natural Sciences. (Academy of Natural Sciences [etc.], 1901)

Proceedings of the eighteenth southern forest tree improvement conference, May 21-23, 1985, Long Beach, Mississippi - Southern Forest Tree Improvement Committee. (National Technical Information Service, 1985)

Proceedings of the Entomological Society of British Columbia - Entomological Society of British Columbia (Entomological Society of British Columbia, 1956)

Proceedings of the Entomological Society of British Columbia - Entomological Society of British Columbia (Entomological Society of British Columbia, 1958)

Proceedings of the Entomological Society of British Columbia - Entomological Society of British Columbia (Entomological Society of British Columbia, 1964)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1963)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1969)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1984)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1987)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1992)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 1996)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 2000)

Proceedings of the Entomological Society of Ontario - Entomological Society of Ontario. (Entomological Society of Ontario, 2001)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1938)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1950)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1971)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1983)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1990)