Philippines. Department of Natural Resources. (1977). Pre-fabricated partition. DNA.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines. Department of Natural Resources. Pre-fabricated Partition. [Quezon City: DNA, 1977.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines. Department of Natural Resources. Pre-fabricated Partition. DNA, 1977.
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