Gem testing /
Anderson, B. W.
Gem testing / B.W. Anderson. - 10th ed. / - London [England] ; Boston : Butterworths, 1990. - x, 390 p., [14] p. of plates : ill. (some col.) ;
0408023201 :
Precious stones--Testing.
TS756.A58 1990
736/.2
Gem testing / B.W. Anderson. - 10th ed. / - London [England] ; Boston : Butterworths, 1990. - x, 390 p., [14] p. of plates : ill. (some col.) ;
0408023201 :
Precious stones--Testing.
TS756.A58 1990
736/.2