APA (7th ed.) Citation

(1966). Existentialism versus Marxism: Conflicting views on humanism. Delta Book.

Chicago Style (17th ed.) Citation

Existentialism Versus Marxism: Conflicting Views on Humanism. New York: Delta Book, 1966.

MLA (9th ed.) Citation

Existentialism Versus Marxism: Conflicting Views on Humanism. Delta Book, 1966.