Mumme, I.A.
The world of sapphires : their occurrence, discrimination, synthesis, and valuation - New South Wales Mumme Publications 1988 - 189 p.
A photocopy
0-9593069-1-9
PRECIOUS STONES
553.82 / M8
The world of sapphires : their occurrence, discrimination, synthesis, and valuation - New South Wales Mumme Publications 1988 - 189 p.
A photocopy
0-9593069-1-9
PRECIOUS STONES
553.82 / M8