Gopal Iyer K. & Roy, U. N. (2005). Watershed management and sustainable development. Kanishka Publishers.
Čikaški stil citiranjaGopal Iyer K. i Upendra Nath Roy. Watershed Management and Sustainable Development. New Delhi: Kanishka Publishers, 2005.
MLA način citiranjaGopal Iyer K. i Upendra Nath Roy. Watershed Management and Sustainable Development. Kanishka Publishers, 2005.
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