Citazione APA

U.S. Geological Survey, U. (1955). American Mineralogist, vol.40, (1-12).

Stile di citazione Chicago

U.S. Geological Survey, U.S.A. American Mineralogist, Vol.40, (1-12). U.S. Geological Survey, U.S.A, 1955.

Citazione MLA

U.S. Geological Survey, U.S.A. American Mineralogist, Vol.40, (1-12). 1955.