Portilla, M. d. l. (1976). Rincon humoristico [microform]. Photoduplication Service. University of the Philippines Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPortilla, Manuel de la. Rincon Humoristico [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPortilla, Manuel de la. Rincon Humoristico [microform]. Photoduplication Service. University of the Philippines Library, 1976.
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