000			00409nam a2200157Ia 4500
003			NIELib
008			211019s9999||||xx |||||||||||||| ||und||
020			_a955-97829-0-8
082			_a553.8 _bDES
100			_916262 _aDe, Silva R.N.P.
245			_aGemmology a practical approach
260			_bVishva Lekha, _c2002. _aRatmalana :
300			_axiv,165p.; _c21cm
650			_aEarth Sciences
942			_2ddc _cLM
999			_c14045 _d14045