Gaya APA
The Changing Surface of Earth. (2002).
New York:
Mc Graw Hill.
Gaya Chicago
The Changing Surface of Earth.
.
New York:
Mc Graw Hill,
2002.
Printed Book.
Gaya MLA
The Changing Surface of Earth.
.
New York:
Mc Graw Hill,
2002.
Printed Book.
Gaya Turabian
The Changing Surface of Earth.
New York:
Mc Graw Hill,
2002.
Printed Book.