Guerra, N. G., & Bradshaw, C. P. (2008). Core competencies to prevent problem behaviors and promote positive youth development. Wiley Periodicals.
Citace podle Chicago (17th ed.)Guerra, Nancy G., a Catherine P. Bradshaw. Core Competencies to Prevent Problem Behaviors and Promote Positive Youth Development. San Francisco: Wiley Periodicals, 2008.
Citace podle MLA (9th ed.)Guerra, Nancy G., a Catherine P. Bradshaw. Core Competencies to Prevent Problem Behaviors and Promote Positive Youth Development. Wiley Periodicals, 2008.
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