Sinco, E. D. (1976). The psychological characteristics of the college environment and their implications for Foundation College [microform]. Photoduplication Service, University of the Philippines Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sinco, Edelmira D. The Psychological Characteristics of the College Environment and Their Implications for Foundation College [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1976.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Sinco, Edelmira D. The Psychological Characteristics of the College Environment and Their Implications for Foundation College [microform]. Photoduplication Service, University of the Philippines Library, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.