Lim, C. R. (1979). The effectiveness of the National Union Catalog and the Marcfiche as searching tools in the Cataloging Section of the Rizal Library [microform]. University of the Philippines Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lim, Corazon R. The Effectiveness of the National Union Catalog and the Marcfiche as Searching Tools in the Cataloging Section of the Rizal Library [microform]. Quezon City: University of the Philippines Library, 1979.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Lim, Corazon R. The Effectiveness of the National Union Catalog and the Marcfiche as Searching Tools in the Cataloging Section of the Rizal Library [microform]. University of the Philippines Library, 1979.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.