333.91309542
S617D
           Singh, Lakhan
               Doon ghati jalagam pariyojana mein sahbhagita ke gatyatmak paksh \ Lakhan Singh and B P Sinha - New Delhi : Concept, 2002.
               260p.
                ISBN: 81-7022-942-1

144406
                Subjects: Watershed Project-Doon Valley.