000 00473nam a2200181Ia 4500
008 180921t1975 xxu||||| |||| 00| 0 sin d
041 _asin
080 _a551.1
_bDES
100 _aDe Silva, M.C.
245 _aපෘතුවිය
246 _aPruthuviya
260 _bEducation department
_c1975
300 _a32p., ill., 25 cm
650 _aEarth
_aOcean
_aSea
_aMineral
_aMineralogy
942 _cBK
999 _c16563
_d16563
003 LK-CoDNM
040 _aLK-CoDNM
_dLK-CoDNM
_eLK-CoDNM