Richards, Thomas J. <br/><br/>
Spectrum Mathematics / 
Thomas J. Richards 
 - 3rd ed. 
<br/><br/> College of Education  Bachelor of Secondary Education major in Mathematics 
<br/><br/><label>ISBN: </label>0-8445-1425-X 
<br/><br/><label>Dewey Class. No.: </label>510 R39