00630nam a2200181Ia 4500001001000000003000500010008004100015010001100056040000900067082001700076110004600093245007900139260005000218300001100268440005200279650005500331650006200386Para_7629CHAP220125s1968    xx            000 0 und d  a206523  cCHAP  aPA 632.7 P65  aNational Academy of Sciences (Washington)  aControl of plant- parasitic nematodes  /c by National Academy of Sciences  aWashington  :b National Academic of Sciences  a172 p.  aPrinciples of plant and animal pest control ; 4  aAgricualtura x plagas x colecciones de escritos   aPlagas x enfermedades por nemátodos  Control de plagas