APA (7th ed.) Citation

Hillman, W. S. (1979). Photoperiodism in plants and animals. Scientific Publications Division, Carolina Biological Supply Co..

Chicago Style (17th ed.) Citation

Hillman, William S. Photoperiodism in Plants and Animals. Burlington, N.C.: Scientific Publications Division, Carolina Biological Supply Co., 1979.

MLA (8th ed.) Citation

Hillman, William S. Photoperiodism in Plants and Animals. Scientific Publications Division, Carolina Biological Supply Co., 1979.