00873nam0-22003131i-450-99000202918040332120021010000202918FED01000202918(Aleph)000202918FED0100020291820021010d--------km-y0itay50------baita<<A >>key to the families of British Diptera.D.M. Umwin3.Montford BridgeField Studies Council1992p.513-55325 cmEstratto da : Field Studies , 5(1981)Ditteri595.77Unwin,D.M.86182ITUNINARICAUNIMARCBK99000202918040332161 V C.8/1214982 (03/02/95)DAGENDAGENKey to the families of British Diptera404966UNINAING01