APA (7th ed.) Citation

Cunningham, W. P., & Harrison, R. M. (1994). Understanding our environment: An introduction. Wm.C. Brown.

Chicago Style (17th ed.) Citation

Cunningham, William P., and Roy M. Harrison. Understanding Our Environment: An Introduction. Dubuque, Iowa: Wm.C. Brown, 1994.

MLA (9th ed.) Citation

Cunningham, William P., and Roy M. Harrison. Understanding Our Environment: An Introduction. Wm.C. Brown, 1994.

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