APA (7th ed.) Citation

Pollinator Partnership & North American Pollinator Protection Campaign. (2013). Bumble bees of the western United States. U.S. Department of Agriculture, Forest Service.

Chicago Style (17th ed.) Citation

Pollinator Partnership and North American Pollinator Protection Campaign. Bumble Bees of the Western United States. [Washington, D.C.]: U.S. Department of Agriculture, Forest Service, 2013.

MLA (9th ed.) Citation

Pollinator Partnership and North American Pollinator Protection Campaign. Bumble Bees of the Western United States. U.S. Department of Agriculture, Forest Service, 2013.