Bell, Stuart E.  <br/><br/>
Triangles 

 - n.p.  Longmans  n.d. 
 - 16p. 
 - Patterns of Mathematics 2 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mthematics
<br/><br/><label>Dewey Class. No.: </label>372.73  / BET