Gaya APA
Jeffery, P.G.. (1981).
Chemical methods of rock analysis .
New York:
Pergamon Press.
Gaya Chicago
Jeffery, P.G..
Chemical methods of rock analysis.
New York:
Pergamon Press,
1981.
.
Gaya MLA
Jeffery, P.G..
Chemical methods of rock analysis.
New York:
Pergamon Press,
1981.
.
Gaya Turabian
Jeffery, P.G..
Chemical methods of rock analysis.
New York:
Pergamon Press,
1981.
.