Nag, N. K. <br/><br/>
Commercial arithmetic 
N. K. Nag 
 - Calcutta  Grantha nilaya  1964 
 - 111p. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business Mathematics
<br/><br/><label>Dewey Class. No.: </label>650.01513  / N147