Webster, Robert

Gemmologists' compendium / Robert Webster ; rev. by E. Allan Jobbins - 6th ed. - New York : Van Nostrand Reinhold, 1938 - 235 p. : ill. (some col.) ; 19 cm.

Originally published in 1937 by N. A. G. Press, London, under title: The gemmologists' pocket compendium

PND 3.25


Precious stones

549.02