Philippines. Department of Trade. (1972). Philippine foreign trade, 1972- resume: A statistical handbook. s.n.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines. Department of Trade. Philippine Foreign Trade, 1972- Resume: A Statistical Handbook. [Quezon City: s.n, 1972.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines. Department of Trade. Philippine Foreign Trade, 1972- Resume: A Statistical Handbook. s.n, 1972.
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