De Guzman, A., Reyes, J., Hofileña, C. F., & Lapitan, G. B. (2003). Watershed management: Saving forests, storing water for the future. Philippines-Canada Local Government Support Program.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDe Guzman, Aileen, Joyce Reyes, Chay Florentino- Hofileña, और Giselle Baretto- Lapitan. Watershed Management: Saving Forests, Storing Water for the Future. Pasig City: Philippines-Canada Local Government Support Program, 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDe Guzman, Aileen, et al. Watershed Management: Saving Forests, Storing Water for the Future. Philippines-Canada Local Government Support Program, 2003.
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