ScienceDirect (Online service), Denno, R. F., & McClure, M. S. (1983). Variable plants and herbivores in natural and managed systems. Academic Press.
Chicago Style (17th ed.) CitationScienceDirect (Online service), Robert F. Denno, and Mark S. McClure. Variable Plants and Herbivores in Natural and Managed Systems. New York: Academic Press, 1983.
MLA (9th ed.) CitationScienceDirect (Online service), et al. Variable Plants and Herbivores in Natural and Managed Systems. Academic Press, 1983.
Warning: These citations may not always be 100% accurate.