U.S. Geological Survey, U. (1964). American Mineralogist, vol.49, (7-12).
Chicago Edition CitationU.S. Geological Survey, U.S.A. American Mineralogist, Vol.49, (7-12). U.S. Geological Survey, U.S.A, 1964.
Cita MLAU.S. Geological Survey, U.S.A. American Mineralogist, Vol.49, (7-12). 1964.
Atenció: Aquestes cites poden no estar 100% correctes.