Van Zile, E. S. (1915). The game of empires. Moffat, Yard & co.
Lua i Stíl Chicago (17ú heag.)Van Zile, Edward S. The Game of Empires. New York: Moffat, Yard & co, 1915.
Lua MLA (9ú heag.)Van Zile, Edward S. The Game of Empires. Moffat, Yard & co, 1915.
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