Philippines (Republic). Office of the President & Presidential Economic Staff. (1967). Economic report on the province of Surigao del Norte: [prepared by Operational Planning, Research and Statistical Office], Presidential Economic Staff. The Office.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines (Republic). Office of the President और Presidential Economic Staff. Economic Report on the Province of Surigao Del Norte: [prepared by Operational Planning, Research and Statistical Office], Presidential Economic Staff. [Manila]: The Office, 1967.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines (Republic). Office of the President और Presidential Economic Staff. Economic Report on the Province of Surigao Del Norte: [prepared by Operational Planning, Research and Statistical Office], Presidential Economic Staff. The Office, 1967.