000 00387nam a2200145Ia 4500
999 _c1222
_d1222
003 OSt
005 20200313101728.0
008 160331s1989 xx 000 0 und d
080 _a630*23 M9
100 _aChatterjee, B. N. ; Maiti, S. and Mandal, B. K.
245 _aCropping system : theory and practice
260 _bOxford and IBH, New Delhi
_c1989
300 _a345
942 _2udc
_cBK