Kelly, Albert Victor  1931- <br/><br/>
Mixed-ability grouping :  theory and practice / 
A. V. Kelly. 
 - London:   Harper & Row,   1978.  
 - xi, 221 p. ;  21 cm. 
<br/><br/>Includes bibliography: p. [210]-215 and index. 
<br/><br/><label>ISBN: </label>0063180707 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mixed ability grouping in education<br/>Individualized instruction<br/>Teaching
<br/><br/><label>Dewey Class. No.: </label>371.252