APA (7e ed.) Bronvermelding
Ehrlich, A. H., & Salzman, J. (2002). The importance of population growth to sustainability. Environmental Law Institute.
Chicago (17e ed.) Bronvermelding
Ehrlich, Anne H., en James Salzman. The Importance of Population Growth to Sustainability. Washington, D.C.: Environmental Law Institute, 2002.
MLA (9e ed.) Bronvermelding
Ehrlich, Anne H., en James Salzman. The Importance of Population Growth to Sustainability. Environmental Law Institute, 2002.
Let op: Deze citaties zijn niet altijd 100% accuraat.