Cita APA (7th ed.)

Ulam, A. B. (1974). Expansion and coexistence: Soviet foreign policy, 1917-73 (2a. ed.). Praeger.

Cita Chicago (17th ed.)

Ulam, Adam B. Expansion and Coexistence: Soviet Foreign Policy, 1917-73. 2a. ed. Nueva York: Praeger, 1974.

Cita MLA (9th ed.)

Ulam, Adam B. Expansion and Coexistence: Soviet Foreign Policy, 1917-73. 2a. ed. Praeger, 1974.