00351nam a2200097Ia 4500080001900000245005300019260003700072300000900109500011600118583001900234  a14.02.02 C7341  aA correspondence course manual for youth workers  bThe Centrea[Georgetown]GYc1980  a3 v.  aContents: Supplement 1 : Principles and practice of communication. - Supplement 2 : Youth and deviant behaviour  c10/14/04kJOYD