APA (7th ed.) Citation

Langer, W. L. (1956). European alliance and aligments 1871-1890. Alfred A. Knopf.

Chicago Style (17th ed.) Citation

Langer, William L. European Alliance and Aligments 1871-1890. Alfred A. Knopf, 1956.

MLA (8th ed.) Citation

Langer, William L. European Alliance and Aligments 1871-1890. Alfred A. Knopf, 1956.

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