000 00457nam a2200121Ia 4500
008 210804s9999 xx 000 0 und d
082 _a338.1095489
_bSRI
110 _aSri Lanka
245 0 _aCost of cultivation of agricultural crops-Yala 1987: paddy
260 _aPeradeniya
_bDepartment of agricultural
_c1988
300 _avI (58 p.)- agricultural economics study no.44
942 _cPRGD
999 _c159357
_d159356