APA (7th ed.) Citation

Strupp, H. H. (1984). Psychotherapy in a new key: A guide to time-limited dynamic psychotherapy. Basic Books.

Chicago Style (17th ed.) Citation

Strupp, Hans H. Psychotherapy in a New Key: A Guide to Time-limited Dynamic Psychotherapy. New York: Basic Books, 1984.

MLA (9th ed.) Citation

Strupp, Hans H. Psychotherapy in a New Key: A Guide to Time-limited Dynamic Psychotherapy. Basic Books, 1984.