The gemmologists' compendium
By: by Robert Webster.
Edition: 5th ed.
Publisher: N.A.G. Press
Published: 1970
Place of publication: London
Language: eng
Number of pages: 235
Subjects: Precious stones.
Work titles: Gemmologists' pocket compendium
Notes: Originally published in 1937 by N. A. G. Press, London, under title: The gemmologists' pocket compendium.