00408nam a2200169Ia 4500001001000000003000500010008004100015010001100056040000900067082001700076100001100093245005100104260002300155300001100178650003900189650001000228Para_7653CHAP220125s1983 xx 000 0 und d a206547 cCHAP aPA 632.8 B62 aBos,L. aIntroduction to plant virology /c by L. Bos. aLondon :b Longman a160 p. aPlantas x enfermedades por virus  aVirus