"SOBEL, MAX" <br/><br/>
Algebra and trigonometry 

 -  Englewood Cliffs, NJ : Prentice Hall, c1995.  2000 
 - 147 
<br/><br/><label>ISBN: </label>9780132991247 
<br/><br/><label>Dewey Class. No.: </label>510  / 502