Williams, O. A. (Orville A.), 1920-  <br/><br/>
Pneumatic and hydraulic conveying of solids / 
O.A. Williams. 
 - New York:  M. Dekker,  1983. 
 - viii, 319 p.:   ill.;   24 cm 
 - Chemical industries  v. 13 .
<br/><br/>Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pneumatic--tube transportation.<br/>Hydraulic conveying.