Gaya APA

Appleyard, D, R., Field, A, J. (1998). International Economics Trade Theory and Policy (Kedua, Cet.3). Boston: McGraw-Hill International.

Gaya MLA

Appleyard, Dennis, R., Field, Alfred, J. "International Economics Trade Theory and Policy". Kedua, Cet.3 Boston: McGraw-Hill International, 1998. Teks.