Citazione Stile APA (7a Edizione)

Cunningham, W. P., Cunningham , M. A., & Woodworth , B. (2003). Environmental science: A global concern (7th ed.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Cunningham, William P., Mary Ann Cunningham , e Barbara Woodworth. Environmental Science: A Global Concern. 7th ed. New York: McGraw-Hill, 2003.

Citatione MLA (9a ed.)

Cunningham, William P., et al. Environmental Science: A Global Concern. 7th ed. McGraw-Hill, 2003.