000			00387pam a2200169a 44500
008			160408b1971 xxu||||| |||| 00| 0 eng d
082			_a666.1 _bJ71g2
100			_aJones, Gwyn Owain
245	1		_aGLASS
250			_a2nd
260			_aLondon _bChapman And Hall _c1971
300			_a128
500			_aRef. : P. 121-124
650			_aGlass
964			_gCIRC
997			_aA29961 C
999			_c247921 _d247921