00333nam a2200133Ia 4500008004100000082001400041100002200055245001800077250001200095260003700107300001500144600002100159650001900180140224s9999    xx            000 0 und d  a632.38 L7  aSmith, Kenneth M.  aPlant viruses  a6th ed.  aLondonbChapman and Hallcc 1977  aviii,241p.  aKenneth M. Smith  aVirus diseases