Miraflor, M. B. 2 miners perish in tunnel collapse. IN Business. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMiraflor, Madelaine B. "2 Miners Perish in Tunnel Collapse. IN Business." Manila Bulletin .
एमएलए (9वां संस्करण) प्रशस्ति पत्रMiraflor, Madelaine B. "2 Miners Perish in Tunnel Collapse. IN Business." Manila Bulletin, .
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