Gaya APA

Palka, E, J., Galgano, F, A. (2004). North Korea : geographic perspectives / Eugene J. Palka, Francis A. Galgano . Connecticut: McGraw-Hill.

Gaya MLA

Palka, Eugene, J.., Galgano, Francis, A.. "North Korea : geographic perspectives / Eugene J. Palka, Francis A. Galgano". Connecticut: McGraw-Hill, 2004. Buku.