Gaya APA

Hartford, K., Duval, B, J. (2000). American Politics and International Relations on the Internet : the smart student's guide . New York: McGraw Hill.

Gaya MLA

Hartford, Kathleen., Duval, Bonnie, Jeanne. "American Politics and International Relations on the Internet : the smart student's guide". New York: McGraw Hill, 2000. Buku Tercetak.