Jennings, W. H.  1898- <br/><br/>
Mathematics for business and commerce / 
by W. H. Jennings and Mary A. St. Louis. 
 - Toronto :  Pitman (Canada),  c1966. 
 - xiv, 477 p. :  ill. 
<br/><br/> Book 2. 
<br/><br/> For commercial students, grade 12. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business mathematics