Tirol, N. D. (1976). A study of the internship program of Rafael Palma College [microform]. Photoduplication Service University of the Philippines Library.
Čikaški stil citiranja (17. izdanje)Tirol, Nuevas D. A Study of the Internship Program of Rafael Palma College [microform]. Quezon City: Photoduplication Service University of the Philippines Library, 1976.
MLA način citiranja (9. izdanje)Tirol, Nuevas D. A Study of the Internship Program of Rafael Palma College [microform]. Photoduplication Service University of the Philippines Library, 1976.
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