Plummer, Charles C. <br/><br/>Physical geology/ Charles C. Plummer.--  -- Sixth edition.  -- Dubuque, Iowa:  Wm. C. Brown Publishers,  1993. <br/>xiv.,  col.: ill.;  28. <br/><br/> Includes index. <br/><br/><label>ISBN: </label>0697138070 <br/><br/><label>Subjects--Topical Terms: </label><br/>Geology<br/><br/><label>Dewey Class. No.: </label>HS Cir 550.20 P732 1993