APA (7th ed.) Citation

(1980). Improving the long-term effects of psychotherapy: Models of durable outcome. Gardner.

Chicago Style (17th ed.) Citation

Improving the Long-term Effects of Psychotherapy: Models of Durable Outcome. New York, N.Y: Gardner, 1980.

MLA (9th ed.) Citation

Improving the Long-term Effects of Psychotherapy: Models of Durable Outcome. Gardner, 1980.

Warning: These citations may not always be 100% accurate.