Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1927)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1969)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 1991)

Proceedings of the Entomological Society of Washington - Entomological Society of Washington (Entomological Society of Washington, 2002)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1895)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1897)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1903)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1900)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1915)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1914)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1920)

Proceedings of the Indiana Academy of Science - Indiana Academy of Science. ([s.n.], 1922)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1887)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1895)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1897)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1898)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1905)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1907)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1909)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1910)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1913)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1915)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1916)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1917)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1918)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1919)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1920)

The Proceedings of the Iowa Academy of Science - Iowa Academy of Science (The Academy, 1922)

Proceedings of the Linnean Society of New South Wales - Linnean Society of New South Wales. (Linnean Society of New South Wales, 1929)

Proceedings of the Manchester Institute of Arts and Sciences - Manchester Institute of Arts; Sciences. (The Institute, 1900)

Proceedings of the Natural History Association of Miramichi - Natural History Association of Miramichi. (The Association, 1899)

Proceedings of the Natural History Society of Wisconsin - Wisconsin Natural History Society. (Wisconsin Natural History Society, 1885)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1938)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1963)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1982)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 1984)

Proceedings of the Rochester Academy of Science - Rochester Academy of Science. (The Academy, 1910)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1960)

Procès-verbaux - Société Linnéenne de Bordeaux. (1925)

Prodromus florae Batavae - Nederlandsche Botanische Vereeniging, Leyden. (F.E. MacDonald, 1916)

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Progress report on pesticides and related activities - United States. Department of Agriculture. (1967)

Proper functioning condition assessment for lentic areas - Smith, David R (U.S. Department of the Interior, Bureau of Land Management, National Operations Center, 2020)

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The protection of small fruits and berries, 1980-April 1989 : citations from AGRICOLA concerning diseases and other environmental considerations - National Agricultural Library (U.S.) (U.S. Dept. of Agriculture, National Agricultural Library, 1989)

The protection of small grains, other than wheat, rice, or sorghums, 1979-April 1990 : citations from AGRICOLA concerning diseases and other environmental considerations - National Agricultural Library (U.S.) (U.S. Dept. of Agriculture, National Agricultural Library, 1990)

A provisional host-index of the fungi of the United States - Farlow, W. G. (William Gilson), 1844 -1919 (1888)

A provisional host-index of the fungi of the United States - Farlow, W. G. (William Gilson), 1844 -1919 (1891)

A provisional list of the parasitic fungi of Wisconsin - Davis, John Jefferson. (1914)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1934)

Publications in botany - National Museum of Natural Sciences (Canada) (The Museum, 1982)

[Publications on plant pathology from Cornell Agricultural Experiment Station Memoirs, collected by H.S. Jackson.] - Jackson, H. S. (Herbert Spencer), 1883 -1951 (Cornell University], 1915)

[Publications on plant pathology from Wisconsin Experiment Station Research bulletins, collected by H.S. Jackson.] - Wisconsin. Agricultural Experiment Station, Madison (1911)

Quarterly report - Montana Fish; Game Commission. Wildlife Restoration Division. (The Division, 1955)

Quarterly trade catalogue of palms, ferns, orchids, flowering plants, stove plants, hardy perennials, seeds and bulbs, etc. etc. : January, February, March, 1895 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pitcher & Manda, 1895)

Queensland Agricultural Journal - Queensland. Department of Agriculture; Stock. (Queensland Dept. of Primary Industries, 1898)

Range and pasture management - Sampson, Arthur W. (Arthur William), 1884 -1967 (John Wiley, 1923)

Range and wildlife habitat evaluation : a research symposium, Flagstaff and Tempe, Ariz., May 1968 - United States. Branch of Range; Wildlife Habitat Ecology; Management Research. (U.S. Dept. of Agriculture, Forest Service, 1970)

Range condition : a classification of the scabland bunchgrass forage type in the Palouse Rock Lake Soil Conservation District - United States. Soil Conservation Service. (U.S. Dept. of Agriculture, Soil Conservation Service, 1946)

Range grasses of California - Chase, Agnes, 1869 -1963 (University of California Printing Office, 1927)

Range pastures in Alberta - Smoliak, S. (Alberta Agriculture, 1988)

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Range plant communities and range health assessment guidelines for the mixedgrass natural subregion of Alberta : first approximation - Alberta. Alberta Sustainable Resource Development. (Alberta Sustainable Resource Development, Public Lands & Forests Division, Rangeland Management Branch, 2005)

Range plant community types and carrying capacity for the dry and central mixedwood subregion : second approximation - Willoughby, Michael, 1959 - (Alberta Environmental Protection, Lands and Forest Services, 1996)

Range plant handbook - Dayton, William A. (William Adams), 1885 - (U. S. Govt. print. off, 1937)

Range plant handbook - Dayton, William A. (William Adams), 1885 - (U.S. Govt. print. off, 1937)

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A rare plant survey of the Wainwright Dunes Ecological Reserve - Alberta. Alberta Sustainable Resource Development. (Alberta Sustainable Resource Development, Resource Data Branch, Public Lands Division, 2003)

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Rawson's garden manual - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.W. Rawson & Co, 1909)

Reading Naturalist. Reading - Reading Natural History Society.

Record of decision and Lake Havasu Field Office approved resource management plan - United States. Bureau of Land Management. (U.S. Department of the Interior, Bureau of Land Management, Lake Havasu Field Office, 2007)

A record of the fungi named by J.B. Ellis - United States. Bureau of Plant Industry, Soils,; Agricultural Engineering. (Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, U.S. Dept. of Agriculture, 1952)

A reference wetland network for assessment and monitoring of Montana's herbaceous wetlands - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2011)

Reise in das innere Nord-America in den Jahren 1832 bis 1834 - Wied, Maximilian, Prinz von, 1782 -1867 (Bei J. Hœlscher, 1839)

Reise in das innere Nord-America in den Jahren 1832 bis 1834 - Wied, Maximilian, Prinz von, 1782 -1867 (Bei J. Hœlscher, 1841)

Reise in den äussersten Norden und Osten Sibiriens während der Jahre 1843 und 1844 mit Allerhöchster Genehmigung auf Veranstaltung der Kaiserlichen Akademie der Wissenschaften zu St. Petersburg ausgeführt und in Verbindung mit vielen Gelehrten - Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia) (Buchdr. der K. Akademie der Wissenschaften : Zu haben bei Eggers, 1856)

The relation of pheasants to agriculture in the Yellowstone and Big Horn River valleys of Montana - Hiatt, Robert W. (Montana State Fish and Game Commission, Wildlife Restoration Division, 1947)

Report - British Columbia Provincial Museum. (Printed by W.H. Cullin, 1942)

Report - British Columbia Provincial Museum. (Printed by W.H. Cullin, 1933)

Report and Transactions / East Kent Scientific and Natural History Society - East Kent Scientific; Natural History Society. (1901)

Report / Botanical Exchange Club and Society of the British Isles - Botanical Exchange Club; Society of the British Isles. (1912)

Report / Botanical Exchange Club and Society of the British Isles - Botanical Exchange Club; Society of the British Isles. (1913)

Report / Botanical Society and Exchange Club of the British Isles - Botanical Society; Exchange Club of the British Isles. (1917)

Report / Botanical Society and Exchange Club of the British Isles - Botanical Society; Exchange Club of the British Isles. (1920)