00850nam0-22003131i-450-99000201557040332120071219135513.00-12-266650-X000201557FED01000201557(Aleph)000201557FED0100020155720030910d1970----km-y0itay50------baengUSa---a---001yyInsect pollination of cropsJohn B. FreeLondon ; New YorkAcademic Press1970544 p.ill.23 cmEntomologiaImpollinazione595.705 2Free,John B.72838ITUNINARICAUNIMARCBK99000201557040332161 IV C.8/043579DAGENDAGENInsect pollination of crops405607UNINA