APA-čujuhus (7. p.)
Wallbank, T. W. (1976). Civilization: Past and present (7th ed.). Scott, Foresman and Co..
Chicago-čujuhus (17. p.)
Wallbank, T. Walter. Civilization: Past and Present. 7th ed. Chicago: Scott, Foresman and Co., 1976.
MLA-čujuhus (9. p.)
Wallbank, T. Walter. Civilization: Past and Present. 7th ed. Scott, Foresman and Co., 1976.
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