Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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