000 00330nam a2200121 4500
082 _a631.4 WIC
_b007552
100 _aWicramanayake,V.E.A.
_9361
245 _aSoil Tillage And Tropical Agriculture
260 _bOpen University of Sri Lanka
_c1994
300 _a57
650 _a Tropical Agriculture
_aSoil Tillage
_9362
942 _cBK
999 _c5047
_d5047