APA (7th ed.) Citation

Karle, H. W. (1987). Hypnotherapy: A practical handbook. Free Association Books.

Chicago Style (17th ed.) Citation

Karle, Hellmut W.A. Hypnotherapy: A Practical Handbook. London: Free Association Books, 1987.

MLA (9th ed.) Citation

Karle, Hellmut W.A. Hypnotherapy: A Practical Handbook. Free Association Books, 1987.