Mathematics Made Simple / 
Sperling Abraham ; Stuart Monroe . 
 - 5th ed. 
 - New York :  Doubleday ,  1991 
 - 272p.  ill.  26 cm. 
<br/><br/><label>ISBN: </label>0385265840 
<br/><br/><label>LC Class. No.: </label>QA39.2  / .S693  1991