Gaya APA

Allen, W, L. (2005). February 2005: National Geographic (9.314) (Febuary 2005). Washington D.C: National Geographic.

Gaya MLA

Allen, William, L.. "February 2005: National Geographic (9.314)". Febuary 2005 Washington D.C: National Geographic, 2005. GEN - Bacaan/Seri Non-Fiksi.