00453nam a2200133Ia 4500008004100000082001500041100002500056245006500081260004300146300000800189942000700197952009800204999001700302140113s9999    xx            000 0 und d  a574.4   L0  a"Clapham, A.R., Ed."  aThe IBP survey of conversation sites : an experimental study  a1980bCambridge Univ. PresscCambridge  a344  cBK  00104070aVTLbVTLd2014-01-13l0o574.4   L0pVBK3806r2014-01-13 00:00:00w2014-01-13yBK  c60390d60390