APA (7th ed.) Citation

United States. National Park Service, University of Arizona. School of Renewable Natural Resources, Sonoran Desert Field Station (Tucson, Ariz.), Geological Survey (U.S.), Powell, B. F., Halvorson, W. L., & Schmidt, C. A. (2006). Vascular plant and vertebrate inventory of Saguaro National Park, Rincon Mountain District. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

United States. National Park Service, University of Arizona. School of Renewable Natural Resources, Ariz.) Sonoran Desert Field Station (Tucson, Geological Survey (U.S.), Brian F. Powell, William L. Halvorson, and Cecilia A. Schmidt. Vascular Plant and Vertebrate Inventory of Saguaro National Park, Rincon Mountain District. Reston, Va.: U.S. Dept. of the Interior, U.S. Geological Survey, 2006.

MLA (9th ed.) Citation

United States. National Park Service, et al. Vascular Plant and Vertebrate Inventory of Saguaro National Park, Rincon Mountain District. U.S. Dept. of the Interior, U.S. Geological Survey, 2006.