APA-čujuhus (7. p.)
Ehrlich, A. H., & Salzman, J. (2002). The importance of population growth to sustainability. Environmental Law Institute.
Chicago-čujuhus (17. p.)
Ehrlich, Anne H., juo James Salzman. The Importance of Population Growth to Sustainability. Washington, D.C.: Environmental Law Institute, 2002.
MLA-čujuhus (9. p.)
Ehrlich, Anne H., juo James Salzman. The Importance of Population Growth to Sustainability. Environmental Law Institute, 2002.
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