ebrary, Inc, Wellens, K., Rieter, E. R., & Waele, H. C. F. J. A. d. (2012). Evolving principles of international law: Studies in honour of Karel C. Wellens. Martinus Nijhoff Publishers.
芝加哥风格引文ebrary, Inc, Karel Wellens, E. R. Rieter, 与 Henri Clemens Ferdinand Jozef Alexander de Waele. Evolving Principles of International Law: Studies in Honour of Karel C. Wellens. Boston: Martinus Nijhoff Publishers, 2012.
MLA引文ebrary, Inc, et al. Evolving Principles of International Law: Studies in Honour of Karel C. Wellens. Martinus Nijhoff Publishers, 2012.
警告：这些引文格式不一定是100％准确.