APA (7th ed.) Citation

Rosen, R. R. (1922). Forty years of diplomacy. A.A. Knopf.

Chicago Style (17th ed.) Citation

Rosen, Roman Romanovich. Forty Years of Diplomacy. New York: A.A. Knopf, 1922.

MLA (9th ed.) Citation

Rosen, Roman Romanovich. Forty Years of Diplomacy. A.A. Knopf, 1922.

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