Sison, J. C. (1979). A study of the information needs and uses of agricultural scientists in the University of the Philippines at Los Banos [microform]. Photoduplication Service. University of the Philippines Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sison, Josephine Caccam. A Study of the Information Needs and Uses of Agricultural Scientists in the University of the Philippines at Los Banos [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1979.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Sison, Josephine Caccam. A Study of the Information Needs and Uses of Agricultural Scientists in the University of the Philippines at Los Banos [microform]. Photoduplication Service. University of the Philippines Library, 1979.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.