Del Caller, M. A. (1975). A study of the value system of freshmen students in two selected catholic schols [microform]. University of the Philippines Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Del Caller, Mary Aloysius. A Study of the Value System of Freshmen Students in Two Selected Catholic Schols [microform]. Quezon City: University of the Philippines Library, 1975.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Del Caller, Mary Aloysius. A Study of the Value System of Freshmen Students in Two Selected Catholic Schols [microform]. University of the Philippines Library, 1975.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.