Cita APA (7th ed.)

Willrich, M. (1978). Energy and world politics. Free Press for the American Society of International Law.

Cita Chicago (17th ed.)

Willrich, Mason. Energy and World Politics. New York: Free Press for the American Society of International Law, 1978.

Cita MLA (9th ed.)

Willrich, Mason. Energy and World Politics. Free Press for the American Society of International Law, 1978.