APA

Kaufmann W. (., . (1957). Existentialism. New York: Meridian Books.

Chicago

Kaufmann Walter (ed.), . 1957. Existentialism. New York: Meridian Books.

Harvard

Kaufmann W. (., . (1957). Existentialism. New York: Meridian Books.

MLA

Kaufmann Walter (ed.), . Existentialism. New York: Meridian Books. 1957.