Gaya APA
Essentials of earth history: An introduction to historical geology. (1996).
New Jersey:
Prentice Hall.
Gaya Chicago
Essentials of earth history: An introduction to historical geology.
.
New Jersey:
Prentice Hall,
1996.
Buku.
Gaya MLA
Essentials of earth history: An introduction to historical geology.
.
New Jersey:
Prentice Hall,
1996.
Buku.
Gaya Turabian
Essentials of earth history: An introduction to historical geology.
New Jersey:
Prentice Hall,
1996.
Buku.