Spielvogel, J. J. (1999). Modern world history. Illiois, USA: National Texbook Comany.
Chicago Style aipamenaSpielvogel, Jackson J. Modern World History. Illiois, USA: National Texbook Comany, 1999.
MLA aipamenaSpielvogel, Jackson J. Modern World History. Illiois, USA: National Texbook Comany, 1999.
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