APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Koops, Joachim A., Norrie Macqueen, Thierry Tardy, and Paul Williams. The Oxford Handbook of United Nations Peacekeeping Operations. Oxford: Oxford Univ. Press, 2015.

MLA (9th ed.) Citation

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