Cohen, Louis <br/><br/>
Educational research in classrooms and schools :   a manual of materials and methods 

 - London :  Harper and Row Publishers ,  1976. 
 - xvi,426p. :  ill. ;  24cm. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0063180472 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational research
<br/><br/><label>LC Class. No.: </label>LB1028.E315