APA (7th ed.) Citation

Hamm, R. L., & Nason, L. G. (1964). An ecological approach to conservation. Burgess Pub. Co..

Chicago Style (17th ed.) Citation

Hamm, Russell L., and Larry G. Nason. An Ecological Approach to Conservation. Minneapolis: Burgess Pub. Co., 1964.

MLA (9th ed.) Citation

Hamm, Russell L., and Larry G. Nason. An Ecological Approach to Conservation. Burgess Pub. Co., 1964.