APA Edition Citation

Wratten, S. D., & Fry, G. L. A. (1980). Field and laboratory exercises in ecology. University Park Press.

Chicago Edition Citation

Wratten, Stephen D., and Gary L. A. Fry. Field and Laboratory Exercises in Ecology. Baltimore: University Park Press, 1980.

MLA Edition Citation

Wratten, Stephen D., and Gary L. A. Fry. Field and Laboratory Exercises in Ecology. University Park Press, 1980.