00494nam a2200181Ia 4500001001000000003000500010008004100015010001100056040000900067082001600076100002600092245008100118250000600199260004100205300001100246650004000257650001500297Para_7464CHAP220125s1981    xx            000 0 und d  a206352  cCHAP  aPA 632.4 L5  aLittlefield, Larry J.  aBiology of the plant rusts  :b an introduction  /c by Larry J. Littlefield  a5  aAmes :b Iowa State University Press  a103 p.  aPlantas x enfermedades por hongos   aUredinales