Ferrer, M. (1967). Library science materials: A union catalog of sixty-three libraries in the Philippines. s.n.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFerrer, Maxima. Library Science Materials: A Union Catalog of Sixty-three Libraries in the Philippines. Manila: s.n, 1967.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFerrer, Maxima. Library Science Materials: A Union Catalog of Sixty-three Libraries in the Philippines. s.n, 1967.
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