Gringa, D. I. (2017). The mystery of history. Lodabar Press.
Lua i Stíl Chicago (17ú heag.)Gringa, D. Ixeh. The Mystery of History. United States of America: Lodabar Press, 2017.
Lua MLA (8ú heag.)Gringa, D. Ixeh. The Mystery of History. Lodabar Press, 2017.
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