Philippines. Department of Public Works, Transportation & Communications. (1976). Pampanga Delta/Cantaba Swamp Area Development Project: Interim report II. DPWTC.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines. Department of Public Works, Transportation & Communications. Pampanga Delta/Cantaba Swamp Area Development Project: Interim Report II. [Quezon City]: DPWTC, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines. Department of Public Works, Transportation & Communications. Pampanga Delta/Cantaba Swamp Area Development Project: Interim Report II. DPWTC, 1976.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.