APA (7th ed.) Citation

Curtis, F. D., & Urban, J. (1958). Biology--the living world. Ginn.

Chicago Style (17th ed.) Citation

Curtis, Francis D., and John Urban. Biology--the Living World. Boston: Ginn, 1958.

MLA (9th ed.) Citation

Curtis, Francis D., and John Urban. Biology--the Living World. Ginn, 1958.