000 00308nam a2200133Ia 4500
008 230108s9999 xx 000 0 und d
100 _aThakur C
245 0 _aScientific crop production vol 1
260 _bMetropolitan Book Co.
260 _c1979
365 _b0.00
650 _aAgronomy
942 _cBK
999 _c244307
_d244307