APA (7th ed.) Citation

DeMars, W. E., & Dijkzeul, D. (2015). The NGO challenge for international relations theory. Routledge.

Chicago Style (17th ed.) Citation

DeMars, William E., and Dennis Dijkzeul. The NGO Challenge for International Relations Theory. Abingdon, Oxon ; New York, NY: Routledge, 2015.

MLA (9th ed.) Citation

DeMars, William E., and Dennis Dijkzeul. The NGO Challenge for International Relations Theory. Routledge, 2015.