000 00329nam a2200109 4500
027 _aAgricultural economics study no. ; 35
041 _aeng
080 _a63.003.1(548.7)
_bS7
942 _cRR
110 _aSri Lanka. Department of Agriculture
245 _a Cost of cultivation of agricultural crops: Maha 1982/1983 vol. 1 - Paddy
999 _c170728
_d170728