APA ציטוט

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

Chicago Style (17th ed.) Citation

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

ציטוט MLA

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