Pohl, Walter L. . Economic Geology: principles and practice: metals, minerals, coal and hydrocarbons - introduction to formation and sustainable exploitation of mineral deposits / by Walter L. Pohl. - New York : John Wiley & Sons, Inc. , 2011 - xiii, 663p ; ISBN: 978-1-4443-3663-4 Subjects--Topical Terms: Geology, Economics Dewey Class. No.: H7 / Q1