Espino, F. V. (1977). A critical study of management of a leading leather tannery in the Philippines. University of the Philippines Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEspino, Felix V. A Critical Study of Management of a Leading Leather Tannery in the Philippines. Quezon City: University of the Philippines Library, 1977.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEspino, Felix V. A Critical Study of Management of a Leading Leather Tannery in the Philippines. University of the Philippines Library, 1977.
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