APA Style

Warner, R., G., D, G. (1995). Schizophrenia : Epidemiology of Mental Disorders and Psychosocial Problems . Geneva: World Health Organization.

MLA Style

Warner, R., G., De, Girolamo,. "Schizophrenia : Epidemiology of Mental Disorders and Psychosocial Problems". Geneva: World Health Organization, 1995. print.