Johnson, G. E., & Van Riper, C., III. (2014). Effects of reintroduced beaver (Castor canadensis) on riparian bird community structure along the upper San Pedro River, southeastern Arizona and northern Sonora, Mexico. U.S. Department of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationJohnson, Glen E., and Charles Van Riper, III. Effects of Reintroduced Beaver (Castor Canadensis) on Riparian Bird Community Structure Along the Upper San Pedro River, Southeastern Arizona and Northern Sonora, Mexico. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 2014.
MLA (9th ed.) CitationJohnson, Glen E., and Charles Van Riper, III. Effects of Reintroduced Beaver (Castor Canadensis) on Riparian Bird Community Structure Along the Upper San Pedro River, Southeastern Arizona and Northern Sonora, Mexico. U.S. Department of the Interior, U.S. Geological Survey, 2014.