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)

Programmatic environmental impact statement on timber management : preliminary draft - United States. Bureau of Land Management. (U.S. Department of the Interior, Bureau of Land Management, 1973)

Programmatic environmental impact statement vegetation treatments using herbicides on Bureau of Land Management lands in 17 western states : draft - United States. Bureau of Land Management. (U.S. Dept. of the Interior, Bureau of Land Management, 2005)

Programmatic environmental impact statement vegetation treatments using herbicides on Bureau of Land Management lands in 17 western states : final - United States. Bureau of Land Management. (U.S. Dept. of the Interior, Bureau of Land Management, 2007)

A programmer's guide to the prognosis optimization model - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture Forest Service, Intermountain Research Station, 1990)

ProHort - Center for Urban Horticulture (1987)

ProHort - Center for Urban Horticulture (1995)

Properties of tree barks in relation to their agricultural utilization - Bollen, W. B. (Walter Beno), 1896 -1989 (Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, 1969)

The proposed forest reserve on the Kenai Peninsula, Alaska - United States. Forest Service. (United States Forest Service, 1904)

Proposed protocol for a rare plant survey in the lower foothills, Northern East Slopes - Alberta. Fisheries; Wildlife Management Division. (Alberta Sustainable Resource Development, Fisheries & Wildlife Management Division, Resource Status and Assessment Branch, 2001)

Proposed regulations by the Animal and Plant Health Inspection Service to establish prohibitions and restrictions concerning imported nonmanufactured wood articles : hearing before the Subcommittee on Specialty Crops and Natural Resources of the Committee on Agriculture, House of Representatives, One Hundred Third Congress, second session, June 29, 1994 - United States. Congress. House. Committee on Agriculture. (U.S. G.P.O, 1995)

Proposed resource management plan and final environmental impact statement for public lands administered by the Bureau of Land Management Rawlins Field Office, Rawlins, Wyoming - United States. Environmental Protection Agency. (U.S. Department of the Interior, Bureau of Land Management, Rawlins Field Office, 2008)

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

Protecting Nature: regional reviews of protected areas - McNeely, J.A. (IUCN, 1994)

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)

Psyche - Cambridge Entomological Club. (Cambridge Entomological Club, 1978)

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

Publications in botany - National Museum of Natural Sciences (Canada) (The Museum, 1973)

Publications in botany - National Museum of Natural Sciences (Canada) (The Museum, 1974)

Publications in botany - National Museum of Natural Sciences (Canada) (The Museum, 1977)

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

Publications in zoology = Publications en zoologie - National Museum of Natural Sciences (Canada) (National Museums of Canada, National Museum of Natural Sciences, 1975)

Publications of the Northern Rocky Mountain Forest and Range Experiment Station : 1912 through 1950 - Northern Rocky Mountain Forest; Range Experiment Station (Missoula, Mont.) (Northern Rocky Mountain Forest & Range Experiment Station, 1951)

Puissance du Canada : les forêts du Canada et leurs produits - Small, H. Beaumont (Henry Beaumont), 1832 -1919 ([publisher not identified], 1885)

Quaestiones entomologicae - University of Alberta. Dept. of Entomology. (Dept. of Entomology, University of Alberta, 1981)

Quaestiones entomologicae - University of Alberta. Dept. of Entomology. (Dept. of Entomology, University of Alberta, 1987)

Quality nursery stock : wholesale list, 1950-51 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Rich & Sons Nursery, 1950)

Quarterly report - Montana Fish; Game Commission. Wildlife Restoration Division. (The Division, 1948)

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

Random notes on natural history (Southwick & Jencks, 1885)

Range plant communities and carrying capacity for the upper foothills subregion : sixth approximation - Canada. Agriculture; Agri-Food Canada. (Alberta Sustainable Resource Development, Public Lands & Forests Division, 2007)

Range plant community types and carrying capacity for the lower foothills subregion of Alberta : fourth approximation - Alberta. Alberta Sustainable Resource Development. (Sustainable Resource Development, Public Lands and Forests, 2005)

Range plant community types and carrying capacity for the lower foothills subregion of Alberta : third approximation - Alberta. Public Lands Division. (Alberta Environment, Land and Forest Service, 2000)

Range plant community types and carrying capacity for the montane subregion : fifth approximation - Alberta. Alberta Sustainable Resource Development. (Alberta Sustainable Resource Development, Public Lands Division, 2003)

Range plant community types and carrying capacity for the montane subregion : fourth approximation - Willoughby, Michael, 1959 - (Alberta Environment, Lands and Forest Services, 2001)

Range plant community types and carrying capacity for the montane subregion : second approximation - Willoughby, Michael, 1959 - (Alberta Environmental Protection, Lands and Forest Services, 1997)