00299nam a2200097Ia 4500008004100000082002900041245005200070260005100122300001000173650001800183140113s9999    xx            000 0 und d  a"632:058(73)""1973"" K9"  aPlant diseases the yearbook of agriculture 1953  b"New Delhi : Oxford & IBH publishing Co, 1969"  a940p.  aPlant disease