Helping children learn mathematics 
Robert E. Reys ...[et al.]. 
 - 8th ed. 
 - Hoboken, NJ  John Wiley & Sons  c2007. 
 - xiv, 481, [30] p.  ill. (some col.)  28 cm. 
<br/><br/>Includes bibliographical references (p. 447-462) and index. 
<br/><br/><label>ISBN: </label>0471710954 (pbk.) 
<br/><br/><label>LCCN: </label>2005056825 
<br/><br/><label>Nat. Bib. No.: </label>GBA604058 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)
<br/><br/><label>LC Class. No.: </label>QA135.6  / .H45 2007 
<br/><br/><label>Dewey Class. No.: </label>372.7044  / H483 2007