Modern earth science / 
by William L. Ramsey ... [et al.]. 
 - New York :  Holt, Rinehart and Winston,  c1969. 
 - x, 550 p. :  ill. ;  24 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences.<br/>Geology.
<br/><br/><label>Dewey Class. No.: </label>550  / MOD 1969