Cita APA (7a ed.)

Arce, J. (1952). United Nations: (admission of new members). [s.n.].

Cita Chicago Style (17a ed.)

Arce, José. United Nations: (admission of New Members). Madrid: [s.n.], 1952.

Cita MLA (9a ed.)

Arce, José. United Nations: (admission of New Members). [s.n.], 1952.