Goppel, Anna. Killing Terrorists. A Moral and Legal Analysis. Berlin, Boston: De Gruyter, 2013. Web. Retrieved 23 May. 2013, from http://www.degruyter.com/view/product/182437

Goppel, A. (2013). Killing Terrorists. A Moral and Legal Analysis. Berlin, Boston: De Gruyter. Retrieved 23 May. 2013, from http://www.degruyter.com/view/product/182437

Goppel, Anna. 2013. Killing Terrorists. A Moral and Legal Analysis. Berlin, Boston: De Gruyter. Retrieved 23 May. 2013, from http://www.degruyter.com/view/product/182437