Gaya APA
Frank Press, Raymond Siever. (1974).
Earth .
Amerika:
W. H Freeman & Company.
Gaya Chicago
Frank Press, Raymond Siever.
Earth.
Amerika:
W. H Freeman & Company,
1974.
Text.
Gaya MLA
Frank Press, Raymond Siever.
Earth.
Amerika:
W. H Freeman & Company,
1974.
Text.
Gaya Turabian
Frank Press, Raymond Siever.
Earth.
Amerika:
W. H Freeman & Company,
1974.
Print.