Gopal Iyer K. & Roy, U. N. (2005). Watershed management and sustainable development. Kanishka Publishers.
Chicago Edition CitationGopal Iyer K. and Upendra Nath Roy. Watershed Management and Sustainable Development. New Delhi: Kanishka Publishers, 2005.
Deismireacht MLAGopal Iyer K. and Upendra Nath Roy. Watershed Management and Sustainable Development. Kanishka Publishers, 2005.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.