APA (7. basım) Alıntı

Eckholm, E. P. (1976). Losing ground; environmental stress and world food prospects. W.W. Norton.

Chicago Style (17. basım) Atıf

Eckholm, Erik P. Losing Ground; Environmental Stress and World Food Prospects. New York: W.W. Norton, 1976.

MLA (9th ed.) Atıf

Eckholm, Erik P. Losing Ground; Environmental Stress and World Food Prospects. W.W. Norton, 1976.