Alunite in granite porphyry near Patagonia, Arizona, in Contributions to economic geology (short papers and preliminary reports) 1912: Part I--Metals and nonmetals except fuels

Schrader, F.C., 1914, Alunite in granite porphyry near Patagonia, Arizona, in Contributions to economic geology (short papers and preliminary reports) 1912: Part I--Metals and nonmetals except fuels: U.S. Geological Survey Bulletin 540, p. 347-350.