De la Cruz, S. A. (1975). The mechanics and problems of corn marketing in the Municipality of Digos, Davao Del Sur [microform]. Photoduplication Service, University of the Philippines Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDe la Cruz, Saturnino A. The Mechanics and Problems of Corn Marketing in the Municipality of Digos, Davao Del Sur [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDe la Cruz, Saturnino A. The Mechanics and Problems of Corn Marketing in the Municipality of Digos, Davao Del Sur [microform]. Photoduplication Service, University of the Philippines Library, 1975.
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