Trecker, Harleigh Bradly,    1911- <br/><br/>
How to work with groups/    
By Harleigh B. Trecker and Audrey R. Tre cker. 
 - New York :   Association Press ,   1965. 
 - 167 p. ;    21 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social groups.--------<br/>Social group work.--------
<br/><br/><label>Dewey Class. No.: </label>301.4 TRE