00420nam a2200157Ia 4500001001000000003000500010008004100015010001100056040000900067082002100076100002600097245006400123260002600187300001100213650003800224Para_7664CHAP220125s1972    xx            000 0 und d  a206683  cCHAP  aPA 632.8 S5 1972  aSmith, Kenneth Manley  aA textbook of plant virus diseases  /c by Kenneth M. Smith  aNew York :b Academic  a684 p.  aPlantas x enfermedades por virus