APA Edition Citation

Langsam, W. C. (1963). World history since [1870]. American Book Co..

Chicago Edition Citation

Langsam, Walter Consuelo. World History Since [1870]. New York: American Book Co., 1963.

MLA Edition Citation

Langsam, Walter Consuelo. World History Since [1870]. American Book Co., 1963.

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