Duiker, W. J. (2015). Contemporary world history (Sixth edition.). Cengage Learning.
Chicagoスタイル(17版)引用形式Duiker, William J. Contemporary World History. Sixth edition. Stamford, Conn: Cengage Learning, 2015.
MLA(9版)引用形式Duiker, William J. Contemporary World History. Sixth edition. Cengage Learning, 2015.
警告: この引用は必ずしも正確ではありません.