000 00272nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aPalaniappan (SP)
245 0 _aCropping system I the tropics 1
260 _bWiley
260 _c1985
365 _b55
942 _cBK
999 _c213802
_d213802