00484nam a2200157Ia 4500001001000000003000500010008004100015010001100056040000900067082001600076100001800092245013400110260004200244300001000286650003000296Para_1929CHAP220125s1992    xx            000 0 und d  a200536  cCHAP  aPA 632.7 T4  aThomson, W.T.  aA worldwide guide to beneficial animals (insects  /c mites  /c nematodes) : used for pest control purposes  /c by W.T. Thomson  aFresno, Ca.  :b Thomson publications  a92 p.  aEntomología económica