Crowson, P. (1990). Minerals handbook 1990-91: Statistics and analyses of the world's minerals industry. New York, Estados Unidos: Stockton Press.
Chicago Style CitationCrowson, Phillip. Minerals Handbook 1990-91: Statistics and Analyses of the World's Minerals Industry. New York, Estados Unidos: Stockton Press, 1990.
MLA CitationCrowson, Phillip. Minerals Handbook 1990-91: Statistics and Analyses of the World's Minerals Industry. New York, Estados Unidos: Stockton Press, 1990.
Warning: These citations may not always be 100% accurate.