000 00508 a2200181 4500
020 _a955966977x
041 _aSn
082 _a333.7
_bKOT
100 _aKotagama , Sarath
245 _aපොළොවේ මැවුම්කරුවෝ 2
_bදිය
260 _c2003
_aColombo
_bSri Lanka Kshesthra Kurulu Vidya Kavaya
_g2003
300 _bill.
_c29 cm.
_a12 p.
650 _aNATURAL RESOURCES WATER
650 _aECONOMICS
650 _aENVIRONMENT
700 _aWijayasinghe , Athula
942 _cSR
999 _c28731
_d30278