Society of Mining Engineers of AIME & Lefond, S. J. (1983). Industrial minerals and rocks: (nonmetallics other than fuels) (Fifth edition.). Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSociety of Mining Engineers of AIME और Stanley J. Lefond. Industrial Minerals and Rocks: (nonmetallics Other than Fuels). Fifth edition. New York, N.Y: Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers, 1983.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSociety of Mining Engineers of AIME और Stanley J. Lefond. Industrial Minerals and Rocks: (nonmetallics Other than Fuels). Fifth edition. Society of Mining Engineers of the American Institute of Mining, Metallurgical, and Petroleum Engineers, 1983.