ebrary, Inc. (2006). The Hutchinson chronology of world history. Helicon.
Chicagoスタイル(17版)引用形式ebrary, Inc. The Hutchinson Chronology of World History. Abingdon, England: Helicon, 2006.
MLA(9版)引用形式ebrary, Inc. The Hutchinson Chronology of World History. Helicon, 2006.
警告: この引用は必ずしも正確ではありません.