APA (7th ed.) Citation

Smith, R. L. (1986). Elements of ecology (Second edition.). Harper & Row.

Chicago Style (17th ed.) Citation

Smith, Robert Leo. Elements of Ecology. Second edition. New York: Harper & Row, 1986.

MLA (9th ed.) Citation

Smith, Robert Leo. Elements of Ecology. Second edition. Harper & Row, 1986.

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