Philippines (Republic). Department of Foreign Affairs. Office of Press and Public Affairs & Romulo, C. P. (1973). The Philippines and the European Economic Community: [report on the official visits of Secretary of Foreign Affairs Carlos P. Romulo to the European Economic Community and to Belgium, 23-25 October 1972. [s.n.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines (Republic). Department of Foreign Affairs. Office of Press and Public Affairs और Carlos Pena Romulo. The Philippines and the European Economic Community: [report on the Official Visits of Secretary of Foreign Affairs Carlos P. Romulo to the European Economic Community and to Belgium, 23-25 October 1972. Manila: [s.n, 1973.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines (Republic). Department of Foreign Affairs. Office of Press and Public Affairs और Carlos Pena Romulo. The Philippines and the European Economic Community: [report on the Official Visits of Secretary of Foreign Affairs Carlos P. Romulo to the European Economic Community and to Belgium, 23-25 October 1972. [s.n, 1973.