00434nam a2200133Ia 450000500170000008000190001724500530003626000370008930000090012650001160013558300190025194200130027099900170028320260716043534.0  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  cCmC7341  c49324d49324