Vajda, S. <br/><br/>
Planning by mathematics 
<label>/ by </label> Vajda, S. 
 - 2nd ed. 
 - London  Pitman  1973 
 - vii, 142p.  ill.  22 cm. 
 - Topics in Operational Research .
<br/><br/><label>ISBN: </label>0273317660 
<br/><br/><label>Dewey Class. No.: </label>519.9  / VAJ