000
00309nam a2200133Ia 4500
008
160316s1957 xxu||||| |||| 00| 0 eng d
020
_a
100
_a
John Charles Walker
245
_a
Plant Pathology
250
_a
1st
260
_a
NEW YORK
_b
MCGRAW-HILL BOOK COMPANY
_c
1957
300
_a
819
700
_a
_a
999
_c
37358
_d
37358