Wallbank, T., Bailkey, N. M., Mancall, M., & Taylor,M Alastair. (1976). Civilization past & present: Book one Prehistory to 1500 (7th ed.). Scott, Foresman and company.
Chicago-čujuhus (17. p.)Wallbank, T.Walter, Nels M. Bailkey, Mark Mancall, juo Taylor,M Alastair. Civilization Past & Present: Book One Prehistory to 1500. 7th ed. Dallas: Scott, Foresman and company, 1976.
MLA-čujuhus (9. p.)Wallbank, T.Walter, et al. Civilization Past & Present: Book One Prehistory to 1500. 7th ed. Scott, Foresman and company, 1976.
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