APA-viite (7. p.)
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.
Chicago-viite (17. p.)
ebrary, Inc, Karel Wellens, E. R. Rieter, ja 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-viite (9. p.)
ebrary, Inc, et al. Evolving Principles of International Law: Studies in Honour of Karel C. Wellens. Martinus Nijhoff Publishers, 2012.
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