Cita APA (7a ed.)

Addo, H. (1986). Imperialism: The permanent Stage of capitalism. United Nations University.

Cita Chicago Style (17a ed.)

Addo, Herb. Imperialism: The Permanent Stage of Capitalism. Tokyo: United Nations University, 1986.

Cita MLA (9a ed.)

Addo, Herb. Imperialism: The Permanent Stage of Capitalism. United Nations University, 1986.