Sgroi, Richart <br/><br/>
mathematics for elementary school teachers:  problem solving investigations/ 
Richart Sgroi. 
 - USA :  boston  1993. 
 - xvi, 701 p. : 
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>053493384-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>mathematics
<br/><br/><label>LC Class. No.: </label>QA135.5  / .5456