APA
Dryden W., . (2012). Cognitive behavior therapies. [Place of publication not identified]: SAGE Publications Inc.
Chicago
Dryden Windy, . 2012. Cognitive behavior therapies. [Place of publication not identified]: SAGE Publications Inc.
Harvard
Dryden W., . (2012). Cognitive behavior therapies. [Place of publication not identified]: SAGE Publications Inc.
MLA
Dryden Windy, . Cognitive behavior therapies. [Place of publication not identified]: SAGE Publications Inc. 2012.