Gaya APA

Parritz, R, H., Troy, M, F. (2011). Disorders of childhood : development and psychopathology . Boston: Belmont, CA : Wadsworth Cengage Learning.

Gaya MLA

Parritz, Robin, Hornik., Troy, Michael, F. "Disorders of childhood : development and psychopathology". Boston: Belmont, CA : Wadsworth Cengage Learning, 2011. Text.