APA (7th ed.) Citation

Breisach, E. (1962). Introduction to modern existentialism. Grove Press, Inc..

Chicago Style (17th ed.) Citation

Breisach, Ernst. Introduction to Modern Existentialism. New York: Grove Press, Inc., 1962.

MLA (9th ed.) Citation

Breisach, Ernst. Introduction to Modern Existentialism. Grove Press, Inc., 1962.