Portugal. Ministry of Foreign Affairs. (1970). Portugal replies in the United Nations. s. n.
Cita Chicago (17th ed.)Portugal. Ministry of Foreign Affairs. Portugal Replies in the United Nations. Lisbon: s. n, 1970.
Cita MLA (9th ed.)Portugal. Ministry of Foreign Affairs. Portugal Replies in the United Nations. s. n, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.