Ashley, Rosalind Minor. <br/><br/>
Simplified teaching techniques and materials for flexible group instruction / 
Rosalind Minor Ashley. 
 - West Nyack, N.Y. :  Parker Publishing Company,  1976. 
 - 228 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0138100934 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Group work in education.