Slavin, Robert E <br/><br/>
Cooperative learning : theory, research & practice 

 - 2nd ed 
 - Allyn and Bacon, Boston  1901 
 - x,194 
<br/><br/><label>ISBN: </label>0-205-15630-4 
<br/><br/><label>Dewey Class. No.: </label>371.3 Sla