APA (7th ed.) Citation

Cowles, V. (1977). The last tsar (1. American ed.). Putnam.

Chicago Style (17th ed.) Citation

Cowles, Virginia. The Last Tsar. 1. American ed. New York: Putnam, 1977.

MLA (9th ed.) Citation

Cowles, Virginia. The Last Tsar. 1. American ed. Putnam, 1977.