West, W. M. (1927). The story of world progress. Allyn and Bacon.
Chicagoスタイル(17版)引用形式West, Willis M. The Story of World Progress. Boston ; New York [etc.]: Allyn and Bacon, 1927.
MLA(8版)引用形式West, Willis M. The Story of World Progress. Allyn and Bacon, 1927.
警告: この引用は必ずしも正確ではありません.