Cita APA

Wyndham, F., & King, D. (1972). Trotsky. A documentary. Penguin Bks.

Citación estilo Chicago

Wyndham, Francis, y David King. Trotsky. A Documentary. Harmondsworth: Penguin Bks, 1972.

Cita MLA

Wyndham, Francis, y David King. Trotsky. A Documentary. Penguin Bks, 1972.