00493nam a2200181Ia 4500001001000000003000500010008004100015010001100056040000900067082001800076100002400094245006900118260002900187300001000216440002800226650003500254650002200289Para_6757CHAP220125s1981    xx            000 0 und d  a205553  cCHAP  aPA 632.96 S35  aSamways, Michael J.  aBiological control of pests and weeds  /c by Michael J. Samways  aLondon :b Edward Arnold  a57 p.  aStudies in biology; 132  aControl biológico de plagas   aControl de Plagas