APA (7th ed.) Citation

Purdom. (1980). Enviromental health (2nd edition.). Academic Pr..

Chicago Style (17th ed.) Citation

Purdom. Enviromental Health. 2nd edition. New York: Academic Pr., 1980.

MLA (8th ed.) Citation

Purdom. Enviromental Health. 2nd edition. Academic Pr., 1980.

Warning: These citations may not always be 100% accurate.