Zalvidea, S. P. (1982). A survey of the present state of social science research in Metro Manila [microform]. University of the Philippines Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Zalvidea, Suzanne P. A Survey of the Present State of Social Science Research in Metro Manila [microform]. Quezon City: University of the Philippines Library, 1982.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Zalvidea, Suzanne P. A Survey of the Present State of Social Science Research in Metro Manila [microform]. University of the Philippines Library, 1982.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.