APA (7th ed.) Citation

Epstein, J., Murtha, C., Vorburger, M., & Barker, P. (2004). Serious mental illness and its co-occurrence with substance use disorders, 2002. Research Triangle Institute.

Chicago Style (17th ed.) Citation

Epstein, Joan, Christine Murtha, Michael Vorburger, and Peggy Barker. Serious Mental Illness and Its Co-occurrence with Substance Use Disorders, 2002. Research Triangle Institute, 2004.

MLA (9th ed.) Citation

Epstein, Joan, et al. Serious Mental Illness and Its Co-occurrence with Substance Use Disorders, 2002. Research Triangle Institute, 2004.