Knaupp, Jonathan. <br/><br/>
Patterns and systems of elementary mathematics 

 - Boston :  Houghton Mifflin,  1977 
 - 425 p.  : ilus. 
<br/><br/><label>LCCN: </label>28404 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Matemáticas.
<br/><br/><label>Dewey Class. No.: </label>510  / K53