00267nam a22000977a 4500003000400000008004100004082001600045100001600061245005000077260004200127OSt230827b        |||||||| |||| 00| 0 eng d  a581.2bU-4P  aU. S. D. A.  aPlant diseases year book of agriculture, 1953  aCalcuttabOxford IBH Publishingc1974