APA (7th ed.) Citation

Oldham, J. M., Skodol, A. E., & Bender, D. S. (2009). Essentials of personality disorders. American Psychiatric Publication.

Chicago Style (17th ed.) Citation

Oldham, John M., Andrew E. Skodol, and Donna S. Bender. Essentials of Personality Disorders. Washington, DC: American Psychiatric Publication, 2009.

MLA (9th ed.) Citation

Oldham, John M., et al. Essentials of Personality Disorders. American Psychiatric Publication, 2009.