Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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