APA (7th ed.) Citation

Frankl, V. E. (1973). Psychotherapy and existentialism : selected papers on logotherapy: Selected papers on logotherapy. Penguin.

Chicago Style (17th ed.) Citation

Frankl, Viktor E. Psychotherapy and Existentialism : Selected Papers on Logotherapy: Selected Papers on Logotherapy. Harmondsworth: Penguin, 1973.

MLA (9th ed.) Citation

Frankl, Viktor E. Psychotherapy and Existentialism : Selected Papers on Logotherapy: Selected Papers on Logotherapy. Penguin, 1973.

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