000			00358nam a2200145Ia 4500
008			180710s9999 xx 000 0 und d
020			_a31621
082			_a553.8 _bWEB
100			_aWEBSTER, F.G.A. Robert
245		4	_aThe gemmologists' compendium
250			_a5th rev. ed.
260			_aLondon _bN.A.G.press Ltd. _c1970
300			_a235 p.
942			_cS
999			_c83833 _d83833