Chayes, Felix.  <br/><br/>
Petrographic modal analysis :  an elementary statistical appraisal /  
Felix Chayes. 
 - London :   John Wiley,   c 1956. 
 - xii, 113 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/>345  345 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rocks--Analysis.
<br/><br/><label>Dewey Class. No.: </label>552 / C399f