APA (7th ed.) Citation

Halvorson, W. L., & Davis, G. E. (1996). Science and ecosystem management in the national parks / William L. Halvorson and Gary E. Davis, editors. University of Arizona Press.

Chicago Style (17th ed.) Citation

Halvorson, William L., and Gary E. Davis. Science and Ecosystem Management in the National Parks / William L. Halvorson and Gary E. Davis, Editors. Tucson: University of Arizona Press, 1996.

MLA (9th ed.) Citation

Halvorson, William L., and Gary E. Davis. Science and Ecosystem Management in the National Parks / William L. Halvorson and Gary E. Davis, Editors. University of Arizona Press, 1996.