Riordon, P. H. (1981). Geology of asbestos deposits. Society of Mining Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRiordon, P. H. Geology of Asbestos Deposits. New York: Society of Mining Engineers, 1981.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRiordon, P. H. Geology of Asbestos Deposits. Society of Mining Engineers, 1981.
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