Advances in geology of the porphyry copper deposits : southwestern North America / Spencer R. Titley, editor. - Tucson, Ariz. : University of Arizona Press, c1982. - xiv, 560 p. : ill. (some col.) ISBN: 0816507309 LCCN: 90022158 Subjects--Topical Terms: Copper ores--North America.Porphyry--North America.