APA način citiranja (7. izdanje)

Cunningham, W. P., & Cunningham, M. A. (2006). Principles of environmental science: Inquiry and applications (3rd ed.). McGraw-Hill.

Čikaški stil citiranja (17. izdanje)

Cunningham, William P., i Mary Ann Cunningham. Principles of Environmental Science: Inquiry and Applications. 3rd ed. Dubuque, IA: McGraw-Hill, 2006.

MLA način citiranja (8. izdanje)

Cunningham, William P., i Mary Ann Cunningham. Principles of Environmental Science: Inquiry and Applications. 3rd ed. McGraw-Hill, 2006.