Παραπομπή σε μορφή APA (7η εκδ.)

Romulo, C. P. (1971). In the mainstream of diplomacy. Office of Press and Public Affairs, Dept. of Foreign Affairs.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Romulo, Carlos Pena. In the Mainstream of Diplomacy. [Manila: Office of Press and Public Affairs, Dept. of Foreign Affairs, 1971.

Παραπομπή σε μορφή MLA (9th εκδ.)

Romulo, Carlos Pena. In the Mainstream of Diplomacy. Office of Press and Public Affairs, Dept. of Foreign Affairs, 1971.