Hammond, Rolt. <br/><br/>
Separation and purification of materials / 
Rolt Hammond. 
 - London :  Heywood & Co., LTD,  1958. 
 - x, 327 p.  ill. ;  23 cm. 
 - Physical Processes in the Chemical Industry  Vol. 1 .
<br/><br/>Includes bibliogr. references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical engineering.<br/>Raw materials.