Cox, Dennis P. <br/><br/>
Geology:  principles and concepts : a programmed text/ 
Dennis P. Cox, Helen R. Cox. 
 - San Francisco :   W.H. Freeman,   1974. 
 - ix, 463 [8] p. :   ill.;  22 x 29 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0716702622 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology --Programmed instruction.
<br/><br/><label>LC Class. No.: </label>QE42  / COX 1974