TransliterationGelmolt G. . Istoriya chelovechestva . Vsemirnaya istoriya . Tom 1 . Obshhee vvedenie. Doistoricheskij period. Amerika. Tihij okean . In Russian
In EnglishGelmolt Mr.. . History of . World history . Volume 1 . General introduction. Doistoricheskij period. America. Pacific Ocean . In Russian, Petersburg
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