Spencer , Edger W. <br/><br/>
Geologic maps :  a practical guide to the interpretation and preparation of geologic maps for geologists, geographers, engineers, and planners / 
Edgar W. Spencer 
 - New York :  MacMillan,  1993 
 - x, 147 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>0024147400  RM77.70 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Maps<br/>Geological mapping