APA (7e ed.) Bronvermelding

Cunningham, W. P., Cunningham, M. A., & Saigo, B. W. (2005). Environmental science: A global concern (8th ed.). McGraw-Hill Higher Education.

Chicago (17e ed.) Bronvermelding

Cunningham, William P., Mary Ann Cunningham, en Barbara Woodworth Saigo. Environmental Science: A Global Concern. 8th ed. Boston: McGraw-Hill Higher Education, 2005.

MLA (8e ed.) Bronvermelding

Cunningham, William P., et al. Environmental Science: A Global Concern. 8th ed. McGraw-Hill Higher Education, 2005.