Williams. Howel  1898, <br/><br/>
Petrography :  An introd. to the study of rocks in thin sections / 
By howel Williams, francis j. Turner, and Charles m. Gilbert. 
 - 406 páginas 
 - A series of geology texts .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrología
<br/><br/><label>LC Class. No.: </label>QE431  / W53