APA-viite

Levi, W. (1979). Contemporary international law: A concise introduction. Westview press.

Chicago-tyylinen lähdeviittaus

Levi, Werner. Contemporary International Law: A Concise Introduction. Colorado: Westview press, 1979.

MLA-viite

Levi, Werner. Contemporary International Law: A Concise Introduction. Westview press, 1979.