Gahagan, Judy. <br/><br/>
Interpersonal and group behaviour / 
Judy Gahagan. 
 - London :  Methuen,  1975. 
 - 144 p. :  ill. ;  19 cm. 
 - Essential psychology ;  B2 .
 - Essential psychology ;  B2. .
<br/><br/>Includes bibliographies and indexes. 
<br/><br/><label>ISBN: </label>0416827403 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social interaction.