APA Citation

Troisfontainess, R. (1968). What is existentialism ? Magi Books, Inc.

Chicago Style Citation

Troisfontainess, Roger. What Is Existentialism ? Magi Books, Inc, 1968.

MLA Citation

Troisfontainess, Roger. What Is Existentialism ? Magi Books, Inc, 1968.

Warning: These citations may not always be 100% accurate.