Cita APA (7a ed.)

Jackson , R., & By Sorensen , . G. (1999). Introduction to international relations. Univ. Pr..

Cita Chicago Style (17a ed.)

Jackson , Robert, y George By Sorensen. Introduction to International Relations. Oxford: Univ. Pr., 1999.

Cita MLA (9a ed.)

Jackson , Robert, y George By Sorensen. Introduction to International Relations. Univ. Pr., 1999.