Cita APA (7a ed.)

Assessment and Qualifications Alliance, McCabe, J., Ferriby, D., & Hewitt, T. (2009). International relations: Conflict and peace in the 20th century (1. impr.). Nelson Thornes.

Cita Chicago Style (17a ed.)

Assessment and Qualifications Alliance, Jim McCabe, David Ferriby, y Tony Hewitt. International Relations: Conflict and Peace in the 20th Century. 1. impr. Cheltenham: Nelson Thornes, 2009.

Cita MLA (9a ed.)

Assessment and Qualifications Alliance, et al. International Relations: Conflict and Peace in the 20th Century. 1. impr. Nelson Thornes, 2009.