APA
National Geographic The 80s V.8 Jan1980-Apr 1983. Washington: National G. Soc.
Chicago
National Geographic The 80s V.8 Jan1980-Apr 1983. Washington: National G. Soc.
Harvard
National Geographic The 80s V.8 Jan1980-Apr 1983. Washington: National G. Soc.
MLA
Washington: National G. Soc. .