Cita APA (7a ed.)

Keohane, R. O., Nye, J. S., & Hoffmann, S. (1993). After the cold war: International institutions and state strategies in Europe, 1989-1991. Harvard University press.

Cita Chicago Style (17a ed.)

Keohane, Robert O., Joseph S. Nye, y Stanley Hoffmann. After the Cold War: International Institutions and State Strategies in Europe, 1989-1991. Cambridge, Mass. [etc.]: Harvard University press, 1993.

Cita MLA (9a ed.)

Keohane, Robert O., et al. After the Cold War: International Institutions and State Strategies in Europe, 1989-1991. Harvard University press, 1993.