Wing, R. C. (1986). A comparison of selected academic performance and behavioral indicators for participants and nonparticipants in school activities. University of Florida.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Wing, Ronald Converse. A Comparison of Selected Academic Performance and Behavioral Indicators for Participants and Nonparticipants in School Activities. Gainesville: University of Florida, 1986.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Wing, Ronald Converse. A Comparison of Selected Academic Performance and Behavioral Indicators for Participants and Nonparticipants in School Activities. University of Florida, 1986.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.