Παραπομπή APA

U.S. Geological Survey, U. (1971). American Mineralogist, vol.56, (1-12).

Παραπομπή Chicago Style

U.S. Geological Survey, U.S.A. American Mineralogist, Vol.56, (1-12). U.S. Geological Survey, U.S.A, 1971.

Παραπομπή MLA

U.S. Geological Survey, U.S.A. American Mineralogist, Vol.56, (1-12). 1971.