Merkoša sitáhtat
APA-čujuhus (7. p.)
Weeks, J. R. (1994). Population: An introduction to concepts and issues (5th ed.). Wadsworth Pub. Co..
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Chicago-čujuhus (17. p.)
Weeks, John Robert. Population: An Introduction to Concepts and Issues. 5th ed. Belmont, Calif.: Wadsworth Pub. Co., 1994.
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MLA-čujuhus (9. p.)
Weeks, John Robert. Population: An Introduction to Concepts and Issues. 5th ed. Wadsworth Pub. Co., 1994.
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