Philippines. Dept. of National Defense. (1974). Office of civil defense. The Department.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines. Dept. of National Defense. Office of Civil Defense. Quezon City: The Department, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines. Dept. of National Defense. Office of Civil Defense. The Department, 1974.
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