Penggayaan APA
Long, Leon E.. (1974).
Geology .
[s.l]:
McGraw-Hill.
Chicago Style
Long, Leon E..
Geology.
[s.l]:
McGraw-Hill,
1974.
Buku.
MLA Style
Long, Leon E..
Geology.
[s.l]:
McGraw-Hill,
1974.
Buku.
Turabian Style
Long, Leon E..
Geology.
[s.l]:
McGraw-Hill,
1974.
Buku.