Hawley, A. H. (1971). Urban Society: An ecological approach. Ronald.
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Tohutoru Kātū Chicago (17th ed.)
Hawley, Amos Henry. Urban Society: An Ecological Approach. New York: Ronald, 1971.
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Tohutoro MLA (9th ed.)
Hawley, Amos Henry. Urban Society: An Ecological Approach. Ronald, 1971.
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