David, W. (1984). Environmental effects of watershed modifications. Philippine Institute for Development Studies.
Chicago Style (17th ed.) CitationDavid, Wilfrido. Environmental Effects of Watershed Modifications. Makati, Metro Manila: Philippine Institute for Development Studies, 1984.
MLA (9th ed.) CitationDavid, Wilfrido. Environmental Effects of Watershed Modifications. Philippine Institute for Development Studies, 1984.
Warning: These citations may not always be 100% accurate.