Legaspi, R. (1999). Like planes, ships to have own black box. Manila Times.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLegaspi, Raymond. "Like Planes, Ships to Have Own Black Box." Manila Times 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLegaspi, Raymond. "Like Planes, Ships to Have Own Black Box." Manila Times, 1999.
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