000 00309nam a2200133Ia 4500
008 160316s1957 xxu||||| |||| 00| 0 eng d
020 _a
100 _aJohn Charles Walker
245 _aPlant Pathology
250 _a1st
260 _aNEW YORK
_bMCGRAW-HILL BOOK COMPANY
_c1957
300 _a819
700 _a
_a
999 _c37358
_d37358