Cita APA (7a ed.)

Ulam, A. B. (1976). The rivals: America and Russia since World War II. Penguin Books.

Cita Chicago Style (17a ed.)

Ulam, Adam Bruno. The Rivals: America and Russia Since World War II. Dallas: Penguin Books, 1976.

Cita MLA (8a ed.)

Ulam, Adam Bruno. The Rivals: America and Russia Since World War II. Penguin Books, 1976.