Powell, Roger,  1949- <br/><br/>
Equilibrium thermodynamics in petrology  : an introduction / 
Roger Powell 
 - London :  Harper & Row,  1978 
 - (256) p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0063180618 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrology<br/>Thermodynamics