APA (7th ed.) Citation

(1948). An encyclopedia of world history. Ancient, medieval and modern, chronologically arranged. Compiled and ed. by W.L. Langer. Houghton Mifflin.

Chicago Style (17th ed.) Citation

An Encyclopedia of World History. Ancient, Medieval and Modern, Chronologically Arranged. Compiled and Ed. by W.L. Langer. Houghton Mifflin, 1948.

MLA (8th ed.) Citation

An Encyclopedia of World History. Ancient, Medieval and Modern, Chronologically Arranged. Compiled and Ed. by W.L. Langer. Houghton Mifflin, 1948.

Warning: These citations may not always be 100% accurate.