A classification of forest habitat types of the southern Arizona and portions of the Colorado Plateau - DeVelice, Robert L. (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1996)

Classification of Southwestern Montana plant communities : emphasizing those of Dillon Resource Area, Bureau of Land Management - Montana Natural Heritage Program. (Montana Natural Heritage Program, 1995)

Classification of the forest vegetation of Colorado by habitat type and community type - Alexander, Robert R. (1987)

Classification of the forest vegetation of Wyoming - Alexander, Robert R. (1986)

Classification of the plant communities of Beaverhead, Silver Bow, and Madison Counties, Montana - United States. Bureau of Land Management. Billings District Office. (Montana Natural Heritage Program, 1992)

Classification, phylogeny and biogeography of the Euxoa detersa group (Lepidoptera: Noctuidae) - Lafontaine, J. Donald (1980)

CLIMACS : a computer model of forest stand development for western Oregon and Washington - Pacific Northwest Forest; Range Experiment Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1984)

Clonal propagation of endangered native plants rhododendron chapmanii gray, taxus floridana nutt., and torreya taxifolia arn - Barnes, Lee Roy, 1954 - (1985)

Coefficient of conservatism rankings for the flora of Montana. report to the Montana Department of Environmental Quality, Helena, Montana. Part I - Montana. Department of Environmental Quality (Montana Natural Heritage Program, 2015)

Coefficient of conservatism rankings for the flora of Montana. Part II - Montana. Department of Environmental Quality (Montana Natural Heritage Program, 2016)

Coefficient of conservatism rankings for the flora of Montana. Part III - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2017)

Coeur d'Alene salamander conservation assessment : U.S.D.A. Forest Service Region 1 - Montana Natural Heritage Program. (Idaho Dept. of Fish and Game, 1994)

Cold damage potential in northwest forests for submission to ecological applications - United States. Bureau of Land Management. (University of Washington, Department of Atmospheric Science, 1997)

The Coleopterists' Bulletin - Coleopterists Society. (Coleopterists' Society, 1966)

The Coleopterists' Bulletin - Coleopterists Society. (Coleopterists' Society, 1972)

The Coleopterists' Bulletin - Coleopterists Society. (Coleopterists' Society, 1976)

The Coleopterists' Bulletin - Coleopterists Society. (Coleopterists' Society, 1979)

Collecting native plants : permit conditions and transplanting tips - United States. Forest Service. Pacific Northwest Region. (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region, 1997)

Colorado's state and private timber resources, 1983 - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1987)

Colorado's timber resources - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1987)

Comparing revegetation success on monitored and nonmonitored gas well sites in southwestern Wyoming - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1993)

Comparison of silvicultural methods at Coyote Creek watersheds in southwestern Oregon : a case history - Pacific Northwest Forest; Range Experiment Station (Portland, Or.) (Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1977)

A comparison of the nutrient content of Rocky Mountain Douglas-fir and ponderosa pine trees - Intermountain Forest; Range Experiment Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1980)

Compendium of plant disease and decay fungi in Canada, 1960-1980 - Ginns, J. H. (James Herbert) (Research Branch, Agriculture Canada, 1986)

Components of adaptive variation in pinus contorta from the inland northwest - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1987)

Composition of root pressure exudate from conifers - Pacific Northwest Forest; Range Experiment Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1981)

Comprehensive tree volume equations for major species of New Mexico and Arizona. II, Tables for unforked trees - Intermountain Forest; Range Experiment Station (Ogden, Utah) (Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1978)

Conference report / Botanical Society of the British Isles - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1963)

Conference report / Botanical Society of the British Isles - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1970)

Conference report / Botanical Society of the British Isles - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1974)

Conference session handbook for a renaissance in wilderness stewardship : Westward Look Resort, Tuscon, Arizona, May 17-21, 1993 - U.S. Fish; Wildlife Service ([National InterAgency Wilderness Conference], 1993)

Congrès international d'entomologie : [proceedings] (Hayez, 1910)

Congrès international d'entomologie : [proceedings] (Hayez, 1988)

Congrès international d'entomologie : [proceedings] (Hayez, 1992)

Congrès international d'entomologie : [proceedings] (Hayez, 1996)

Congrès international d'entomologie : [proceedings] (Hayez, 2000)

Congrès international d'entomologie : [proceedings] (Hayez, 2008)

Congrès international d'entomologie : [proceedings] (Hayez, 2016)

Coniferous forest habitat types of central and southern Utah - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1985)

Coniferous forest habitat types of northern Utah - Intermountain Forest; Range Experiment Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1984)