Lozoya, J. A. (1982). Hoffmann, Stanley. Duties beyond borders: On the limits and possibilites of ethical international politics. New York : Syracuse University Press. 1981. 251 p. El Colegio de México A.C.
Cita Chicago Style (17a ed.)Lozoya, Jorge Alberto. Hoffmann, Stanley. Duties Beyond Borders: On the Limits and Possibilites of Ethical International Politics. New York : Syracuse University Press. 1981. 251 P. El Colegio de México A.C, 1982.
Cita MLA (9a ed.)Lozoya, Jorge Alberto. Hoffmann, Stanley. Duties Beyond Borders: On the Limits and Possibilites of Ethical International Politics. New York : Syracuse University Press. 1981. 251 P. El Colegio de México A.C, 1982.
警告：這些引文格式不一定是100％准確.