Cita APA (7a ed.)
Frankl, V. E. The Doctor and the Soul: From Psychotherapy to Logotherapy. Vintage Books.
Cita estilo Chicago (17a ed.)
Frankl, Viktor E. The Doctor and the Soul: From Psychotherapy to Logotherapy. Nueva York, EUA: Vintage Books.
Cita MLA (9a ed.)
Frankl, Viktor E. The Doctor and the Soul: From Psychotherapy to Logotherapy. Vintage Books.
警告：這些引文格式不一定是100％准確.