Nichols, Eugene Douglas <br/><br/>
Elementary school mathematics and how to teach it 
Eugene D. Nichols, Merlyn J. Behr. 
 - New York  Holt, Rinehart and Winston  c1982. 
 - 514 p.  ill.  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 465-503. 
<br/><br/><label>ISBN: </label>0030064511 
<br/><br/><label>LCCN: </label>81006808  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)
<br/><br/><label>LC Class. No.: </label>QA135.5  / .N53 
<br/><br/><label>Dewey Class. No.: </label>372.7