Philippines (Commonwealth) Bureau of Science & Laya, V. G. (1941). Leather manufacture and its possibilities in the Philippines. Bureau of Print.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines (Commonwealth) Bureau of Science और Vicente Gregorio Laya. Leather Manufacture and Its Possibilities in the Philippines. Manila: Bureau of Print, 1941.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines (Commonwealth) Bureau of Science और Vicente Gregorio Laya. Leather Manufacture and Its Possibilities in the Philippines. Bureau of Print, 1941.
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