APA Citation

Langsam, W. C. (1963). World history since 1870. American Book Company.

Chicago Style Citation

Langsam, Walter Consuelo. World History Since 1870. American Book Company, 1963.

MLA Citation

Langsam, Walter Consuelo. World History Since 1870. American Book Company, 1963.

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