Gaya APA

Flessner, C, A., Piacentini, J, C. (2019). Clinical Handbook of Psychological Disorders in Children and Adolescents: A Step-by-Step Treatment Manual . New York: The Guilford Press.

Gaya MLA

Flessner, Christopher, A., Piacentini, John, C. "Clinical Handbook of Psychological Disorders in Children and Adolescents: A Step-by-Step Treatment Manual". New York: The Guilford Press, 2019. Text.