Duckworth, W. E. and Others <br/><br/>
Guide to operational research   
By W. E. Duckworth, A. E. Gear and A. G. Lockett 
 - 3rd. 
 - London  Chapman & Hall/CRC Press  1977 
 - ix, 205p. Index 
<br/><br/> "Science paperbacks"   
<br/><br/><label>Dewey Class. No.: </label>658.4034  / D836.GO