Spencer, Edgar Winston, <br/><br/>
Geologic maps :  a practical guide to the preparation and interpretation of geologic maps : for geologists, geographers, engineers, and planners / 
Edgard W. Spencer 
 - 2nd ed. 
 - 147 páginas :  ilustraciones, mapas (algunas a color) 
<br/><br/><label>ISBN: </label>0130115835 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geología--Mapas<br/>Cartografía geológica
<br/><br/><label>LC Class. No.: </label>QE36  / S64 2000