Duiker, W. J., & Spielvogel, J. J. History of the World (Seventh edition.).
Chicago Style (17th ed.) CitationDuiker, William J., and Jackson J. Spielvogel. History of the World. Seventh edition.
MLA (9th ed.) CitationDuiker, William J., and Jackson J. Spielvogel. History of the World. Seventh edition.
Warning: These citations may not always be 100% accurate.