APA (7th ed.) Citation

Marsh, A., & Allsop. (2008). Co-occurring posttraumatic stress disorder and drug disorders. IP Communications.

Chicago Style (17th ed.) Citation

Marsh, Alison, and Allsop. Co-occurring Posttraumatic Stress Disorder and Drug Disorders. IP Communications, 2008.

MLA (9th ed.) Citation

Marsh, Alison, and Allsop. Co-occurring Posttraumatic Stress Disorder and Drug Disorders. IP Communications, 2008.

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