Cita APA (7a ed.)

Wellens, K., Rieter, E. R., & Waele, H. d. (2012). Evolving principles of international law: Studies in honour of Karel C. Wellens. Martinus Nijhoff Publishers.

Cita Chicago Style (17a ed.)

Wellens, Karel, E. R. Rieter, y Henri de Waele. Evolving Principles of International Law: Studies in Honour of Karel C. Wellens. Boston: Martinus Nijhoff Publishers, 2012.

Cita MLA (8a ed.)

Wellens, Karel, et al. Evolving Principles of International Law: Studies in Honour of Karel C. Wellens. Martinus Nijhoff Publishers, 2012.