APA (7th ed.) Citation

Langer, W. L. (1960). An encyclopedia of world history: Ancient, medieval, and modern, chronologically arranged ([3.], rev. ed., ill. with maps.). Harrap.

Chicago Style (17th ed.) Citation

Langer, William L. An Encyclopedia of World History: Ancient, Medieval, and Modern, Chronologically Arranged. [3.], rev. ed., ill. with maps. London [u.a.]: Harrap, 1960.

MLA (9th ed.) Citation

Langer, William L. An Encyclopedia of World History: Ancient, Medieval, and Modern, Chronologically Arranged. [3.], rev. ed., ill. with maps. Harrap, 1960.