Frondel,Clifford. (1962). System of mineralogy Vol.3: Silica minerals (Seventh.). John Wiley.
Chicago Edition CitationFrondel,Clifford. System of Mineralogy Vol.3: Silica Minerals. Seventh. New York: John Wiley, 1962.
MLA Edition CitationFrondel,Clifford. System of Mineralogy Vol.3: Silica Minerals. Seventh. John Wiley, 1962.
Warning: These citations may not always be 100% accurate.