Gaya APA

FRIEDMAN, G., MOORE, M, C. (2009). The next 100 years: a forecast for the 21 st century . New York: Anchor Books.

Gaya MLA

FRIEDMAN, George., MOORE, Marvelene, C.. "The next 100 years: a forecast for the 21 st century". New York: Anchor Books, 2009. Buku Teks.