R.S  AGGARWAL <br/><br/>
A MODERN APPROACH TO REASONING 

 - RAM NAGAR ,NEW DELHI  S.CHAND &COMPANY LTD   1999 
<br/><br/><label>ISBN: </label>81-219-1905-3 
<br/><br/><label>Dewey Class. No.: </label>001.076  / AGG/A