00457nam a2200169Ia 4500003000400000008004100004082001600045100001700061245003800078250002800116260005400144300001400198650001800212650002300230650002000253650001400273OSt170901s1973    xx            000 0 und d  a581.2bS48P  aSingh, R. S. 0aPlant Diseases / cby R. S. Singh  a3rd ed. second printing  a.- New Delhib: Oxford and IBH Publishingc, 1975  axvi,512p.  aPure Sciences  aBotanical Sciences  aPlant Pathology  aBook Bank