Reys, Robert E., <br/><br/>
Helping children learn mathematics / 
Robert E. Reys, Marilyn N. Suydam, Mary Montgomery Lindquist 
 - 3rd edition 
 - Boston :  Allyn and Bacon,   c1992 
 - viii, 312 pages :  illustrations ;  28 cm 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0205131425 
<br/><br/><label>LCCN: </label>91035925 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)
<br/><br/><label>LC Class. No.: </label>QA135.5  / .R49 1992 
<br/><br/><label>Dewey Class. No.: </label>