000 00299nam a2200133Ia 4500
008 230108s9999 xx 000 0 und d
100 _aPalaniappan SP
245 0 _aCropping Systems in the Tropics
260 _bWiley
260 _c1985
365 _b33.00
650 _aAgronomy
942 _cBK
999 _c238919
_d238919