Engelmann, Siegfried. <br/><br/>
Preventing failure in the primary grades. 

 - Chicago,  Science Research Associates  [1969] 
 - 396 p.  illus.  24 cm. 
<br/><br/>Bibliographical references included in "Notes" (p. 396) 
<br/><br/><label>LCCN: </label>78087257 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education, Primary.
<br/><br/><label>LC Class. No.: </label>LB 1507  / .E5