Hougen, Olaf A. (Olaf Andreas),  1893- <br/><br/>
Chemical process principles 
/ by Olaf A. Hougen, Kenneth M. Watson and Roland A. Ragatz 
 - 2d ed. Modern Asia Edition 
 - New York :  John Wiley & Sons,  1960 
 - v,  ill. ;  20 cm. 
<br/><br/>pt. 1. Material and energy balances.--pt. 2. Thermodynamics. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical processes<br/>Chemistry, Physical and theoretical