Cox, Dennis P. <br/><br/>
Geology principles and concepts :  a programmed text / 
Dennis P. Cox, Helen R. Cox. 
 - San Francisco :  W.H. Freeman,  c1974. 
 - A series of books in geology .
<br/><br/> Preliminary ed. published in 1965 under title: Introductory geology : a programmed text.  Includes index.  Pages [237]-463 in reverse order on verso of pages 9-236. 
<br/><br/><label>ISBN: </label>0716702622 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology -- Programmed instruction.--Geology -- Programmed instruction.