CHRISTOPHERSON Robert W. Elemental geosystems - 7th - New York Pearson 2013 - xxi,531p. cm. - IFS School of Finance . ISBN: 9780132698566 5634.2299999999996 Source: IN558, 30/08/2013, R K Books General Book Subjects--Topical Terms: Geography Dewey Class. No.: U2, N8;Q3/TD1