APA-viite (7. p.)

Cunningham, W. P. (2001). Environmental science: A global concern (6th edition.). McGraw-Hill.

Chicago-viite (17. p.)

Cunningham, William P. Environmental Science: A Global Concern. 6th edition. New York: McGraw-Hill, 2001.

MLA-viite (9. p.)

Cunningham, William P. Environmental Science: A Global Concern. 6th edition. McGraw-Hill, 2001.