ebrary, Inc, Obi, C. I., & Rustad, S. A. (2011). Oil and insurgency in the Niger Delta: Managing the complex politics of petro-violence. Zed Books Ltd..
芝加哥风格引文ebrary, Inc, C. I. Obi, 与 Siri Aas Rustad. Oil and Insurgency in the Niger Delta: Managing the Complex Politics of Petro-violence. London ; New York: Zed Books Ltd., 2011.
MLA引文ebrary, Inc, et al. Oil and Insurgency in the Niger Delta: Managing the Complex Politics of Petro-violence. Zed Books Ltd., 2011.
警告：这些引文格式不一定是100％准确.