Spencer, Edgar W.,  <br/><br/>
Geologic maps :  a practical guide to preperation and interpretation of geologic maps for geologists, geographers, engneers and planners / by 
Edgar W. Spencer. 
 - 2nd edition 
 - Upper Saddle River, New Jersey 07458 :  Prentice Hall,  c2000. 
 - viii, 147 p. :  illustrations,  27 Cm. 
<br/><br/>includes index. 
<br/><br/><label>ISBN: </label>0130115835 9780130115836 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology.
<br/><br/><label>Dewey Class. No.: </label>550.0223