000 00517nam a22001937a 4500
999 _c63335
_d63335
003 BD-DhPL
005 20190907145604.0
008 190711b ||||| |||| 00| 0 eng d
040 _aBD-DhPL
_bEnglish
_cBD-DhPL
_dBD-DhPL
082 _a553.8 / A23g
100 _aAnderson, B. W.
_9188582
245 _aGem testing /
_cB. W. Anderson.
250 _a7th ed.
260 _aLondon :
_bTemple Press Books,
_cc 1964.
300 _a382 p. :
_bill ;
_c22 cm.
508 _a324
650 _aGems.
_9188583
942 _2ddc
_cBK