Beilby, Michael Harry <br/><br/>
Economics and operational research 

 - London  Pitman Publishing  [1975] 
 - x, 174p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECONOMICS<br/>ECONOMIC RESEARCH OPERATIONS
<br/><br/><label>LC Class. No.: </label>HD 20.5 Bei