Neuschwander, Cindy. <br/><br/>
Sir Cumference and the sword in the cone / 
by Cindy Neuschwander ; illustrated by Wayne Geehan. 
 - Watertown, MA :  Charlesbridge,  c2003. 
 - 32 p. :  col. ill. ;  26 cm. 
<br/><br/> Sir Cumference, Radius, and Sir Vertex search for Edgecalibur, the sword that King Arthur has hidden in a geometric solid. 
<br/><br/><label>ISBN: </label>1570916004 (Hardcover) 9781570916007 (Hardcover) 1570916012 (Softcover) 9781570916014 (Softcover) 9780756951771 (PFNL) 0756951771 (PFNL) 
<br/><br/><label>Source: </label>1220675  QBI 
<br/><br/><label>LCCN: </label>2002153288 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Juvenile literature.<br/>Geometry.<br/>Mathematical recreations.
<br/><br/><label>LC Class. No.: </label>QA 40.5  / .N48 2003