APA-Zitierstil (7. Ausg.)

Villiger, M. E. (1997). Customary international law and treaties: A manual on the theory and practice of the interrelation of sources (2., fully rev. ed.). Kluwer.

Chicago-Zitierstil (17. Ausg.)

Villiger, Mark E. Customary International Law and Treaties: A Manual on the Theory and Practice of the Interrelation of Sources. 2., fully rev. ed. The Hague [u.a.]: Kluwer, 1997.

MLA-Zitierstil (9. Ausg.)

Villiger, Mark E. Customary International Law and Treaties: A Manual on the Theory and Practice of the Interrelation of Sources. 2., fully rev. ed. Kluwer, 1997.