Denholm, Richard A. <br/><br/>
Elementary Algebra:   part 1 / 
Richard A. Denholm, Robert G. Underhill, Mary P. Dolciani. 
 - New ed. 
 - Atlanta :  Houghton Mifflin Co.,  c1977. 
 - xii, 461 p. :  ill. ;  23 cm. 
<br/><br/> Includes index.  Includes glossary. 
<br/><br/><label>ISBN: </label>0395240301 
<br/><br/><label>Dewey Class. No.: </label>512  / DEN