003340000a22001330004500020001500000060000800015082001400023100001900037245003500056260004000091260000900131300000800140650005200148  a0521368901  a100  a632.3 PAR  aParry, David W  aPlant pathology in agriculture  aNewyork, Cambridge university press  c1990  a385  aPlant pathology/ plant diseases/ crops-diseases