APA Citation

Langsam, W. C. (1954). The world since 1919 (7th ed. of The world since 1914.). New York: Macmillan.

Chicago Style Citation

Langsam, Walter Consuelo. The World Since 1919. 7th ed. of The world since 1914. New York: Macmillan, 1954.

MLA Citation

Langsam, Walter Consuelo. The World Since 1919. 7th ed. of The world since 1914. New York: Macmillan, 1954.

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