Gübelin, Eduard Josef, 1913-
Internal world of gemstones : documents from space and time / E. Gübelin. - 2d ed. - London ; Boston : Newnes-Butterworths, 1979. - 234 p. : col. ill. ; 29 cm.
Bibliography: p. 233-234.
0408004363
80477793
GB***
Precious stones--Inclusions.
QE392 / .G814 1979
553.8
Internal world of gemstones : documents from space and time / E. Gübelin. - 2d ed. - London ; Boston : Newnes-Butterworths, 1979. - 234 p. : col. ill. ; 29 cm.
Bibliography: p. 233-234.
0408004363
80477793
GB***
Precious stones--Inclusions.
QE392 / .G814 1979
553.8