Gaya APA
Grosvenor, G, H. (1985).
February 1985: National Geographic .
Washington, D.C.:
National Geographic.
Gaya MLA
Grosvenor, Gilbert, Hovey.
"February 1985: National Geographic".
Washington, D.C.:
National Geographic,
1985.
GEN - Bacaan/Seri Non-Fiksi.