Wason. V. <br/><br/>
Wason`s  Doule Entry Book  Keeping 

 - 1st. 
 - Delhi:  S.Chand. 
 - 4.257. 
<br/><br/><label>ISBN: </label>81-219-2493-6 
<br/><br/><label>Dewey Class. No.: </label> / WAS