000 00393 a2200133 4500
080 _a581.2:53.01
_bZ19P
245 1 _aPhysical theory of focus development in plant disease
_cby M.W. Zawolek
260 _aWageningen
_bLandbouwuniversiteit
_c1989
650 _aPlant Disease
100 1 _aZawolek, M.W.
300 _a231 p.
040 _aIARI, New Delhi
901 _a181380
999 _c73517
_d73517