APA (7th ed.) Citation
Smith, R. L. (1990). Ecology and field biology (4th ed.). Harper and Row.
Chicago Style (17th ed.) Citation
Smith, Robert Leo. Ecology and Field Biology. 4th ed. New York: Harper and Row, 1990.
MLA (9th ed.) Citation
Smith, Robert Leo. Ecology and Field Biology. 4th ed. Harper and Row, 1990.
Warning: These citations may not always be 100% accurate.