Proceedings of the nineteenth southern forest tree improvement conference, June 16-18, 1987, College Station, Texas - Texas Agricultural Experiment Station. (National Technical Information Service, 1987)

Proceedings of the ninth Southern Conference on Forest Tree Improvement : Knoxville, Tennessee, June 8-9, 1967 - Tennessee Valley Authority. Division of Forestry Development. (Eastern Tree Seed Laboratory, 1967)

Proceedings of the ninth Southern Conference on Forest Tree Improvement held at Athens, Georgia January 8 and 9, 1957 - Tennessee Valley Authority. Division of Forestry Development. (Eastern Tree Seed Laboratory, 1967)

Proceedings of the Nova Scotian Institute of Science - Nova Scotian Institute of Science. (Nova Scotian Institute of Science, 2001)

Proceedings of the seventeenth Southern Forest Tree Improvement Conference, June 6-9, 1983, University of Georgia, Athens, Georgia - University of Georgia. School of Forest Resources. (s.n, 1983)

Proceedings of the Seventh Southern Conference on Forest Tree Improvement, June 26-27, 1963, Gulfport, Mississippi - Southern Forest Experiment Station (New Orleans, La.) (Published by the Southern Forest Experiment Station, Forest Service, U.S. Department of Agriculture, 1963)

Proceedings of the sixteenth Southern Forest Tree Improvement Conference : [held] May 27-28, 1981, Virginia Polytechnic Institute and State University, Blacksburg, Va - Southern Forest Tree Improvement Committee. (U.S. Forest Sciences Laboratory, 1981)

Proceedings of the tenth Southern Conference on Forest Tree Improvement : Houston, Texas, June 17-19, 1969 - Tennessee Valley Authority. Division of Forestry Development. (Eastern Tree Seed Laboratory, 1969)

Proceedings of the third southern conference on forest tree improvement held at New Orleans, Louisiana, January 5 and 6, 1955 - Southern Forest Tree Improvement Committee. (U.S. Dept. of Agriculture, 1955)

Proceedings of the Twenty-first Southern Forest Tree Improvement Conference, June 17-20, 1991, Knoxville, Tennessee - Southern Forest Tree Improvement Committee. (National Technical Information Service, 1991)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1917)

Proceedings of the United States National Museum - Smithsonian Institution (Smithsonian Institution Press, [etc.], 1967)

Proceedings : Seed Collection Workshop, May 16-18, 1979 - United States. Forest Service. (U.S. Dept. of Agriculture, Forest Service, Southeastern Area, State & Private Forestry, 1979)

Proceedings : Southern Forest Tree Improvement Conference - Southern Forest Experiment Station (New Orleans, La.) (Louisiana State University, Division of Continuing Education in cooperation with Southern Forest Experiment Station, USDA Forest Service, 1973)

Proceedings, Western Forest [sic] Nursery Council-Intermountain Nurseryman's Association combined meeting, August 14-16, 1984, Coeur d'Alene, Idaho - Landis, Thomas D. (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1985)

Procès-verbaux - Société Linnéenne de Bordeaux. (1947)

Productivity of America's forests and climate change - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1995)

Profile models for estimating log end diameters in the Rocky Mountain Region - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1989)

ProHort - Center for Urban Horticulture (1986)

ProHort - Center for Urban Horticulture (1987)

Protecting and enhancing America's forests and rangelands : 1986 research accomplishments - United States. Forest Service. (U.S. Dept. of Agriculture, Forest Service, 1987)

Protecting forest trees and their seed from wild mammals : a review of the literature - Pacific Northwest Forest; Range Experiment Station (Portland, Or.) (Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1963)

The protection of ornamental plants, 1979-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 soybeans, January 1980-November 1984 : citations from Agricola concerning diseases and other environmental considerations - National Agricultural Library (U.S.) (U.S. Dept. of Agriculture, National Agricultural Library, 1985)

The protection of turf grasses, 1979-March 1987 : citations from AGRICOLA concerning diseases and other environmental considerations - National Agricultural Library (U.S.) (U.S. Dept. of Agriculture, National Agricultural Library, 1987)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1987)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 2009)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 2010)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 2012)

[Publications] - Bureau of Government Laboratories - Philippines. Bureau of Government Laboratories. (Bureau of Public Printing, 1905)

Publications of the Southern Forest Experiment Station : 1955 through 1961 - Southern Forest Experiment Station (New Orleans, La.) (Southern Forest Experiment Station, 1962)

Publications of the Southern Forest Experiment Station : 1962 through 1970. Supplement - Southern Forest Experiment Station (New Orleans, La.) (USDA Forest Service, Southern Forest Experiment Station, 1971)

Quail-food plants of the southeastern states - Martin, Alexander Campbell, 1897 - (U.S. Dept. of Agriculture, 1935)

Quarterly journal of the Florida Academy of Sciences - Florida Academy of Sciences. (Florida Academy of Sciences, 1952)

Quarterly journal of the Florida Academy of Sciences - Florida Academy of Sciences. (Florida Academy of Sciences, 1960)

Quarterly journal of the Florida Academy of Sciences - Florida Academy of Sciences. (Florida Academy of Sciences, 1964)

Quarterly journal of the Florida Academy of Sciences - Florida Academy of Sciences. (Florida Academy of Sciences, 1972)

Queen Anne's county - Maryland Geological Survey. (The Johns Hopkins press, 1926)

The Queensland Naturalist - Queensland Naturalists' Club. (Queensland Naturalists' Club], 1939)

The Queensland Naturalist - Queensland Naturalists' Club. (Queensland Naturalists' Club], 1956)