Utgard, Russell O. <br/><br/>
Sourcebook for earth sciences and astronomy / 
Russell O. Utgard, George T. Ladd and Hans O. Andersen. 
 - New York :  Macmillan,  1972. 
 - 298 p. : 
<br/><br/><label>ISBN: </label>ISBNSc3306 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences
<br/><br/><label>Dewey Class. No.: </label>551.016  / So