Mitchner, E., & Tuffs, R. J. (1989). One world. Reidmore books.
Chicago-čujuhus (17. p.)Mitchner, E.Alyn, juo R. Joanne Tuffs. One World. Edmonton: Reidmore books, 1989.
MLA-čujuhus (9. p.)Mitchner, E.Alyn, juo R. Joanne Tuffs. One World. Reidmore books, 1989.
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