000 00360 a2200145 4500
041 _aEnglish
082 _a691.095493
_bBOG
100 _aV.T.L. Bogahawatte
245 _aBuilding materials in Sri Lanka
260 _c1993
_aColombo
_bN.A.R.E.S.A.
_g1993
300 _a39p
440 _aNARESA science education series
650 _aBuildings
942 _s1
_cPRB
999 _c6639
_d6639