Citazione Stile APA (7a Edizione)

Guerra, N. G., & Bradshaw, C. P. (2008). Core competencies to prevent problem behaviors and promote positive youth development. Wiley Periodicals.

Citazione stile Chigago Style (17a edizione)

Guerra, Nancy G., e Catherine P. Bradshaw. Core Competencies to Prevent Problem Behaviors and Promote Positive Youth Development. San Francisco: Wiley Periodicals, 2008.

Citatione MLA (9a ed.)

Guerra, Nancy G., e Catherine P. Bradshaw. Core Competencies to Prevent Problem Behaviors and Promote Positive Youth Development. Wiley Periodicals, 2008.