Slavin, Robert E. <br/><br/>
Cooperative Learning : Theory, Research And Practice. 

 -  Allyn And Bacon  1995 
 - X, 194 P. 28 CM. 
<br/><br/><label>ISBN: </label>205156304 
<br/><br/><label>Dewey Class. No.: </label>371.148 SLA 1995