Cita APA (7a ed.)

Hegemann, H., Heller, R., & Kahl, M. (2012). Studying Effectiveness in International Relations: A guide for students and scholars. Verlag Barbara Budrich.

Cita Chicago Style (17a ed.)

Hegemann, Hendrik, Regina Heller, y Martin Kahl. Studying Effectiveness in International Relations: A Guide for Students and Scholars. Leverkusen-Opladen: Verlag Barbara Budrich, 2012.

Cita MLA (8a ed.)

Hegemann, Hendrik, et al. Studying Effectiveness in International Relations: A Guide for Students and Scholars. Verlag Barbara Budrich, 2012.