The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2002)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2003)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2004)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2005)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2006)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2007)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2008)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2009)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2010)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2011)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2012)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2013)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2014)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2015)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2016)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2017)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2018)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2019)

Canaries in the catbird seat : the past, present, and future of biological resources in a changing environment - Illinois. Natural History Survey Division (Illinois Natural History Survey, 2009)

Canmore Corridor integrated land management plan - Walker, C. E. (Alberta Energy and Natural Resources, 1979)

Caribou Island Seeds, 1938 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Caribou Island Seeds, 1938)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 1995)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2000)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2002)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2009)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2011)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2016)

Catalog 1958-1959 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Clyde Robin, 1958)

Catalog 1959 to 1962 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Clyde Robin, 1959)

A catalog and bibliography of the Buprestoidea of America north of Mexico - Nelson, Gayle H (Coleopterists Society, 2008)

Catalog and planting guide : evergreens, ornamental and deciduous trees, roses, shrubs. no. 39, spring 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pikes Peak Nurseries, 1958)

Catalog and planting guide : evergreens, ornamental and deciduous trees, shrubs. No. 37, spring 1957 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pikes Peak Nurseries, 1957)

Catalog and planting guide : evergreens, ornamental and deciduous trees, shrubs, nut trees, fruit trees. no. 41, spring 1959 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pikes Peak Nurseries, 1959)

Catalog and price list. No. 38 - fall 1957 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pikes Peak Nurseries, 1957)

Catalog and price list. no. 40 - fall 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Pikes Peak Nurseries, 1958)

Catalog for spring 1926 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Call's Nurseries, 1926)

A catalog of cultivated woody plants of the southeastern United States - Meyer, Frederick G. 1917 -2006 (U.S. Dept. of Agriculture, Agricultural Research Service, 1994)

Catalog of hymenoptera in America north of Mexico - Krombein, Karl V. (Smithsonian Institution Press, 1979)

Catalog of the Cinara species of North America (Homoptera: Aphididae) - Illinois. Natural History Survey Division (Illinois Natural History Survey, 1988)