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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines (Republic). National Economic Council. Economic Survey Report of the Bicol Region, 1967. Manila: [s.n.], 1967.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines (Republic). National Economic Council. Economic Survey Report of the Bicol Region, 1967. [s.n.], 1967.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.