APA (7th ed.) Citation

Langer, W. L. (1966). European alliances and alignments: 1871-1890. With suppl. bibliogr (2.ed.,repr.). Knopf.

Chicago Style (17th ed.) Citation

Langer, William L. European Alliances and Alignments: 1871-1890. With Suppl. Bibliogr. 2.ed.,repr. New York: Knopf, 1966.

MLA (9th ed.) Citation

Langer, William L. European Alliances and Alignments: 1871-1890. With Suppl. Bibliogr. 2.ed.,repr. Knopf, 1966.