Williams, Howel,  1898- <br/><br/>
Petrography :  an introduction to the study of rocks in thin sections / 
Howel Williams, Francis J. Turner [and] Charles M. Gilbert 
 - 2nd ed. 
 - San Francisco :  W. H. Freeman,  1955 
 - x, 406 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label> usd 8.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrology<br/>Thin sections (Geology)