Heald, Tim <br/><br/>
Networks  : who we know and how we use them 
/ Tim Heald 
 - Kent  Coronet Books  1985 
 - 288 p. 
<br/><br/><label>ISBN: </label>340368624 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social groups<br/>Group facilitation<br/>Helping behaviour
<br/><br/><label>Dewey Class. No.: </label>305  / HEA