000 00441 a2200145 4500
041 _aEn
082 _a025.0691
_bHEN
100 _aHendriksen , Oskarjayathilaka , Sarath
245 _aGeographic information systems for utility mapping
260 _aColombo
_bNational Water Supply and Drainage Board
300 _c23 cm.
_axiv,112 p.
650 _aINFORMATION SYSTEMS GEOGRAPHY
650 _aLIBRARY AND INFORMATION SCIENCE
942 _cLN
999 _c29291
_d30838