Horffer, Alang R.  & Musser, Gary L. <br/><br/>
Elementary Algebra 
By Alan R. Hoffer & Gary L. Musser 
 - Boston  Prindle, Weber and Schimdt, Incorporated  1969 
 - xii, 281 pages, 23 cm. 
<br/><br/> includes appendix and index 
<br/><br/><label>ISBN: </label>87150-064-9 
<br/><br/><label>Dewey Class. No.: </label>512 H67 c1