Williams, Howel,  1896- <br/><br/>
Petrography :  an introduction to the study of rock in thin sections / 
by Howell Williams, Francis J. Turner and Charles M. Gilbert. 
 - Feffer and Simons Private Ltd., Bombay :  Vakils,  1954. 
 - 406 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography :page 385-386. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrology.