Van Zile, E. S. (1915). The game of empires. Moffat, Yard & co.
Chicago-čujuhus (17. p.)Van Zile, Edward S. The Game of Empires. New York: Moffat, Yard & co, 1915.
MLA-čujuhus (9. p.)Van Zile, Edward S. The Game of Empires. Moffat, Yard & co, 1915.
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