Penggayaan APA
GULLUY, James. (1968).
Principles of geology (3).
San Fransisco:
W.H Freeman and Company.
Chicago Style
GULLUY, James.
Principles of geology.
3
San Fransisco:
W.H Freeman and Company,
1968.
Buku.
MLA Style
GULLUY, James.
Principles of geology.
3
San Fransisco:
W.H Freeman and Company,
1968.
Buku.
Turabian Style
GULLUY, James.
Principles of geology.
3
San Fransisco:
W.H Freeman and Company,
1968.
Buku.