Fredricks, J. A., & Eccles, J. S. (2010). Breadth of Extracurricular Participation and Adolescent Adjustment Among African-American and European-American Youth.
Chicago-tyylinen lähdeviittausFredricks, Jennifer A., ja Jacquelynne S. Eccles. Breadth of Extracurricular Participation and Adolescent Adjustment Among African-American and European-American Youth. 2010.
MLA-viiteFredricks, Jennifer A., ja Jacquelynne S. Eccles. Breadth of Extracurricular Participation and Adolescent Adjustment Among African-American and European-American Youth. 2010.
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