00461nam a2200181Ia 4500 2323 140314s9999 xx 000 0 und d 0422776602 PK-LaUMT 302.3 DOV-G Douglas, Tom Groups : Understanding people gathered together Douglas, Tom London,UK: Transaction Publishers, 1983 252 p. EN Social groups BK 2633 2633 0 0 0 0 01 01 2014-03-14 0 302.3 DOV-G 2046 2014-03-14 00:00:00 2014-03-14 BK