Gaya APA

Goldstein, J, S, &, P, J, C. (2009). International relations: 2008-2009 update, 8th ed. . New York: New York Pearson Longman.

Gaya MLA

Goldstein, Joshua, S., &, Pevehouse,, Jon, C.. "International relations: 2008-2009 update, 8th ed. ". New York: New York Pearson Longman, 2009. Buku.