APA (7th ed.) Citation

Wentzel, E. (1982). Probability theory: First steps. Mir Pub..

Chicago Style (17th ed.) Citation

Wentzel, E.S. Probability Theory: First Steps. Moscow: Mir Pub., 1982.

MLA (9th ed.) Citation

Wentzel, E.S. Probability Theory: First Steps. Mir Pub., 1982.