Norris, P. W. <br/><br/>
Principles and practice of commercial arithmetic 
P. W. Norris 
 - London  Sir ISAAC Pitam and sons 
 - 425p. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business Mathematics
<br/><br/><label>Dewey Class. No.: </label>650.01513  / N853