Παραπομπή APA

Koops, J. A., Macqueen, N., Tardy, T., & Williams, P. D. (2015). The Oxford handbook of United Nations peacekeeping operations. Oxford university press.

Παραπομπή Chicago Style

Koops, Joachim A., Norrie Macqueen, Thierry Tardy, και Paul D. Williams. The Oxford Handbook of United Nations Peacekeeping Operations. UK: Oxford university press, 2015.

Παραπομπή MLA

Koops, Joachim A., et al. The Oxford Handbook of United Nations Peacekeeping Operations. Oxford university press, 2015.