Gems of Sri Lanka
Ariyarathna , D. H.
Gems of Sri Lanka - 5th ed. - London Author 1976 - 109 p. Illustration 21 cm.
9559549405
MINERALOGY
GEOLOGY
GEM INDUSTRY OF SRI LANKA
GEMMOLOGY
553.8095493 / ARI
Gems of Sri Lanka - 5th ed. - London Author 1976 - 109 p. Illustration 21 cm.
9559549405
MINERALOGY
GEOLOGY
GEM INDUSTRY OF SRI LANKA
GEMMOLOGY
553.8095493 / ARI