(1998). Natural disasters. Library of Congress Office ; Library of Congress Photoduplication Service.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNatural Disasters. New Delhi : Washington, D.C.: Library of Congress Office ; Library of Congress Photoduplication Service, 1998.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNatural Disasters. Library of Congress Office ; Library of Congress Photoduplication Service, 1998.
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