Cruz, R. (1997). Watershed management and food security in the Philippines: Policy issues and concerns. Center for Policy and Development Studies, University of the Philippines at Los Baños.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCruz, R.V.O. Watershed Management and Food Security in the Philippines: Policy Issues and Concerns. College, Laguna: Center for Policy and Development Studies, University of the Philippines at Los Baños, 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCruz, R.V.O. Watershed Management and Food Security in the Philippines: Policy Issues and Concerns. Center for Policy and Development Studies, University of the Philippines at Los Baños, 1997.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.