WEEKS, J. R. (1986). Population: An introduction to concepts and issues.--Ed.3. Wadsworth Pub Co.
Chicago-čujuhus (17. p.)WEEKS, John R. Population: An Introduction to Concepts and Issues.--Ed.3. Belmont: Wadsworth Pub Co, 1986.
MLA-čujuhus (9. p.)WEEKS, John R. Population: An Introduction to Concepts and Issues.--Ed.3. Wadsworth Pub Co, 1986.
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