000 00320nam a2200121Ia 4500
001 MPKV056741
008 120911s9999 xx 000 0 und d
082 _a630
245 _aExperiment Station Record Vol 81
_c;
246 _aExperiment Station Record Vol 81
260 _aWashington
_bU S D A
_c1939
650 _aAgronomy
999 _c54735
_d54735