00493nam a2200169Ia 4500008004100000020001500041082001800056100002000074245003700094260003200131300000800163650004100171650003400212653002700246700002700273700002300300170901s1990    xx            000 0 und d  a0849347939  a632.951bL13S  aLaird, Marshall 0aSafety of Microbial Insecticides  aUSAbCRC, Press, Inc.c1990  a259  aAgriculture and related technologies  aTechnology (Applied sciences)  aMicrobial insecticides  aDavidson, Elizabeth. D  aLacey, Lawrence. A