Παραπομπή APA
Weyland, J. (1969). The principles of population and production as they are affected by the progress of society with a view to moral and political consequences. New York: Augustus M. Kelley.
Παραπομπή Chicago StyleWeyland, John. The Principles of Population and Production As They Are Affected By the Progress of Society With a View to Moral and Political Consequences. New York: Augustus M. Kelley, 1969.
Παραπομπή MLAWeyland, John. The Principles of Population and Production As They Are Affected By the Progress of Society With a View to Moral and Political Consequences. New York: Augustus M. Kelley, 1969.
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