Chayes, Felix. <br/><br/>
Ratio correlation;  a manual for students of petrology and geochemistry / 
Felix Chayes. 
 - Chicago :  University of Chicago Press,  1971. 
 - viii, 99 p. ;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0226102203 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrology.<br/>Geochemistry.<br/>Correlation (Statistics)