APA (7th ed.) Citation

Smith, R. L. (1992). Elements of ecology (3rd ed.). Harper Collins.

Chicago Style (17th ed.) Citation

Smith, Robert Leo. Elements of Ecology. 3rd ed. New York: Harper Collins, 1992.

MLA (9th ed.) Citation

Smith, Robert Leo. Elements of Ecology. 3rd ed. Harper Collins, 1992.

Warning: These citations may not always be 100% accurate.