Thomas, Roger D.K. <br/><br/>
Instructor's guide to earth / 
Roger D. K. Thomas 
 - 3a ed. 
 - San Francisco, Calif. :  Freeman,  1982 
 - 165 p. ; 23 cm. 
<br/><br/><label>ISBN: </label>0716714159 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geologia
<br/><br/><label>LC Class. No.: </label>QE 40 T46  / 1982