Gaya APA
Earth : Portrait of a Planet. (2005).
New York:
[s.n.].
Gaya Chicago
Earth : Portrait of a Planet.
.
New York:
[s.n.],
2005.
Text.
Gaya MLA
Earth : Portrait of a Planet.
.
New York:
[s.n.],
2005.
Text.
Gaya Turabian
Earth : Portrait of a Planet.
New York:
[s.n.],
2005.
Print.