000 nam a22 7a 4500
999 _c11512
_d11512
005 20240322140348.0
008 240322b xxu||||| |||| 00| 0 eng d
040 _aSLIDA
_cSLIDA
_dSLIDA
041 _aeng
082 _aX631.58637:62
_bARG
245 _aFarmers' Knowledge and Perception of Improved Technology:
_bA Study of Five Farming Systems /
_hEnglish.
260 _aColombo:
_bAgrarian Research and Training Institute /
_c1980.
300 _a83 p.:
_bill. tables ;
_c30cm.
942 _2ddc
_cLEN