Cita APA (7a ed.)

Hannikainen, L. (1988). Peremptory norms (jus cogens) in international law: Historical development, criteria, present status. Lakimiesliiton Kustannus.

Cita Chicago Style (17a ed.)

Hannikainen, Lauri. Peremptory Norms (jus Cogens) in International Law: Historical Development, Criteria, Present Status. Helsinki: Lakimiesliiton Kustannus, 1988.

Cita MLA (9a ed.)

Hannikainen, Lauri. Peremptory Norms (jus Cogens) in International Law: Historical Development, Criteria, Present Status. Lakimiesliiton Kustannus, 1988.