(1959). Vol. 31, № 247; Mineralogical magazine. 1959.
Cita Chicago (17th ed.)Vol. 31, № 247; Mineralogical Magazine. 1959, 1959.
Cita MLA (9th ed.)Vol. 31, № 247; Mineralogical Magazine. 1959, 1959.
Atenció: Aquestes cites poden no estar 100% correctes.