Angelo Cagnacci Schwicker. (1970). International dictionary of metallurgy of mineralogy geology: Mining and oil industries. New York: McGraw-Hill.

Angelo Cagnacci Schwicker. International Dictionary of Metallurgy of Mineralogy Geology: Mining and Oil Industries. New York: McGraw-Hill, 1970.

Angelo Cagnacci Schwicker. International Dictionary of Metallurgy of Mineralogy Geology: Mining and Oil Industries. New York: McGraw-Hill, 1970.