Keller, Henry C. <br/><br/>
Unit-load and package conveyors;  application and design 
[by] H. C. Keller. 
 - New York,  Ronald Press Co.  [1967] 
 - v, 241 p.  illus.  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TRANSPORTE MECANICO<br/>MAQUINARIA DE TRANSPORTE
<br/><br/><label>Universal Decimal Class. No.: </label>621.86