Lial ,Margaret  L. <br/><br/>
Algebra and Trigonometry:an alternate approach 

 - 4th 
 - Illinois  1986 
 - 706 
<br/><br/><label>ISBN: </label>0-673-18298-3 
<br/><br/><label>Subjects--Personal Names: </label><br/>Mathematics
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humanities and Natural sciences