Permanent revolution

MLA

Trotsky, Leon. Permanent Revolution. Calcutta: Gupta Rahman and Gupta, 1947.

APA

Trotsky, L. (1947). Permanent revolution. Calcutta: Gupta Rahman and Gupta.

Chicago

Trotsky, Leon, and Leon Trotsky. Permanent Revolution. Calcutta: Gupta Rahman and Gupta, 1947.