The Gem-trak gemstone identifier — a test report

1986 ◽  
Vol 20 (4) ◽  
pp. 242-243
Author(s):  
Peter Read
Keyword(s):  
1990 ◽  
Author(s):  
SIPPICAN OCEAN SYSTEMS INC MARION MA
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document