APA način citiranja

Βαλληνδάς, Π. Γ. (1957). General principles of law and the hierarchy of the sources of international law. Bonn: Schimmelbusch.

Čikaški stil citiranja

Βαλληνδάς, Πέτρος Γ. General Principles of Law and the Hierarchy of the Sources of International Law. Bonn: Schimmelbusch, 1957.

MLA način citiranja

Βαλληνδάς, Πέτρος Γ. General Principles of Law and the Hierarchy of the Sources of International Law. Bonn: Schimmelbusch, 1957.