Gaya APA
GEOGRAPHIC, N. (2007).
NATIONAL GEOGRAPHIC: THE BIG THAW ICE ON THE RUN, SEAS ON THE RISE .
Amerika:
National Geographic.
Gaya MLA
GEOGRAPHIC, NATIONAL.
"NATIONAL GEOGRAPHIC: THE BIG THAW ICE ON THE RUN, SEAS ON THE RISE".
Amerika:
National Geographic,
2007.
Text.