APA (7th ed.) Citation

Smith, R. L. (1974). Ecology and field biology (2nd ed.). Harper and Row.

Chicago Style (17th ed.) Citation

Smith, Robert Leo. Ecology and Field Biology. 2nd ed. New York: Harper and Row, 1974.

MLA (9th ed.) Citation

Smith, Robert Leo. Ecology and Field Biology. 2nd ed. Harper and Row, 1974.