Gaya APA
PEARL, Richard M.. (1948).
Popular Gemology .
New York:
Jhon Wiley and Sons.
Gaya Chicago
PEARL, Richard M..
Popular Gemology.
New York:
Jhon Wiley and Sons,
1948.
Teks.
Gaya MLA
PEARL, Richard M..
Popular Gemology.
New York:
Jhon Wiley and Sons,
1948.
Teks.
Gaya Turabian
PEARL, Richard M..
Popular Gemology.
New York:
Jhon Wiley and Sons,
1948.
Teks.