HEER, D. M. (1968). Society and population. Prentice-Hall.
Tohutoru Kātū Chicago (17th ed.)HEER, David M. Society and Population. Englewood: Prentice-Hall, 1968.
Tohutoro MLA (9th ed.)HEER, David M. Society and Population. Prentice-Hall, 1968.
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