APA (7th ed.) Citation

David, W. P. (1984). Environmental effects of watershed modifications. Philippine Institute for Development Studies.

Chicago Style (17th ed.) Citation

David, Wilfredo P. Environmental Effects of Watershed Modifications. Makati, Metro Manila: Philippine Institute for Development Studies, 1984.

MLA (9th ed.) Citation

David, Wilfredo P. Environmental Effects of Watershed Modifications. Philippine Institute for Development Studies, 1984.