Cita APA (7th ed.)

Frankl, V. E. (1967). Psychotherapy and existentialism: Selected papers on logotherapy. Touchstone.

Cita Chicago (17th ed.)

Frankl, Viktor E. Psychotherapy and Existentialism: Selected Papers on Logotherapy. New York: Touchstone, 1967.

Cita MLA (9th ed.)

Frankl, Viktor E. Psychotherapy and Existentialism: Selected Papers on Logotherapy. Touchstone, 1967.