Philippines. Regional Development Council, Region II. (2008). Region II: Updated Cagayan Valley regional development plan, 2008-2010. RDC II.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines. Regional Development Council, Region II. Region II: Updated Cagayan Valley Regional Development Plan, 2008-2010. Tuguegarao City: RDC II, 2008.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines. Regional Development Council, Region II. Region II: Updated Cagayan Valley Regional Development Plan, 2008-2010. RDC II, 2008.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.