APA (7th ed.) Citation

Smith, R. L. (1986). Elements of ecology / Robert Leo Smith (2nd ed.). Harper & Row.

Chicago Style (17th ed.) Citation

Smith, Robert Leo. Elements of Ecology / Robert Leo Smith. 2nd ed. New York ; London: Harper & Row, 1986.

MLA (9th ed.) Citation

Smith, Robert Leo. Elements of Ecology / Robert Leo Smith. 2nd ed. Harper & Row, 1986.

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