Gem testing /
Anderson, B. W. (Basil William), 1901-
Gem testing / by B. W. Anderson - 8th ed. - London : Butterworth, 1971 - 13, 384 p., 6 plates. : ill. , (some col.). ; 23 cm.
First pub. in 1942 under title: Gem testing for jewellers
Includes bibliographical references
0408701277
Precious stones
Gem testing / by B. W. Anderson - 8th ed. - London : Butterworth, 1971 - 13, 384 p., 6 plates. : ill. , (some col.). ; 23 cm.
First pub. in 1942 under title: Gem testing for jewellers
Includes bibliographical references
0408701277
Precious stones