Duckworth, W. E. <br/><br/>
Guía para la investigación de operaciones / 
[by] W. Eric Duckworth, [translated by] Alfonso Vasseur Walls. 
 - México :  Compania Editorial Continental,  c1967. 
 - 183 p. :  ill. ;  23 cm. 
<br/><br/> English title: A guide to operational research. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operations research.<br/>Investigación operacional.
<br/><br/><label>LC Class. No.: </label>HD 20.5  / D836g 1967