Bettelheim Charles <br/><br/>
Some basic planning problems 
Bettelheim Charles 
 - Bombay  Asia Publisnihg        1961 
 - vii,68p  cm. 
<br/><br/><label>Standard No.: </label>46078 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>X:75.2'N6, K1