Gaya APA
Marshak, Stephen. (2001).
Earth portrait of aplanet / Stephen Marshak .
New York:
W. W. Norton \r Company.
Gaya Chicago
Marshak, Stephen.
Earth portrait of aplanet / Stephen Marshak.
New York:
W. W. Norton \r Company,
2001.
Buku.
Gaya MLA
Marshak, Stephen.
Earth portrait of aplanet / Stephen Marshak.
New York:
W. W. Norton \r Company,
2001.
Buku.
Gaya Turabian
Marshak, Stephen.
Earth portrait of aplanet / Stephen Marshak.
New York:
W. W. Norton \r Company,
2001.
Buku.