Vajda S <br/><br/>
Planning by mathematics 

 - Londan  Sir Isaac Pitman and Sons      1969 
<br/><br/><label>Standard No.: </label>9506 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATHEMATICS
<br/><br/><label>Dewey Class. No.: </label>B2893, K9