Gaya APA
HURLBUT, Cornelius S., SWITZER, George S.. (1979).
Gemology .
New York:
A Wiley-Interscience Publication.
Gaya Chicago
HURLBUT, Cornelius S., SWITZER, George S..
Gemology.
New York:
A Wiley-Interscience Publication,
1979.
.
Gaya MLA
HURLBUT, Cornelius S., SWITZER, George S..
Gemology.
New York:
A Wiley-Interscience Publication,
1979.
.
Gaya Turabian
HURLBUT, Cornelius S., SWITZER, George S..
Gemology.
New York:
A Wiley-Interscience Publication,
1979.
.