Cita APA

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

Citación estilo Chicago

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

Cita MLA

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