Dyfyniad APA

Hawley, A. H. (1950). Human ecology: A theory of community structure. Ronald Press.

Dyfyniad Arddull Chicago

Hawley, Amos Henry. Human Ecology: A Theory of Community Structure. New York: Ronald Press, 1950.

Dyfyniad MLA

Hawley, Amos Henry. Human Ecology: A Theory of Community Structure. Ronald Press, 1950.

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