Anderson, B.W.
Gem testing - 10th ed. - London Butterworths 1990 - x, 390p. : ill., 70 col. plates
0408023201
PRECIOUS STONES
GEMS
549.091 / A6
Gem testing - 10th ed. - London Butterworths 1990 - x, 390p. : ill., 70 col. plates
0408023201
PRECIOUS STONES
GEMS
549.091 / A6