Singh, Usha.
assessment and prospects of water resourcse in eastern U.P. / by Usha Singh. - 1st.Edn. / - Varanasi : National Geographical Society Of India , 1979 - xv,131p :
Earth Science
H4224.445282 / M3
assessment and prospects of water resourcse in eastern U.P. / by Usha Singh. - 1st.Edn. / - Varanasi : National Geographical Society Of India , 1979 - xv,131p :
Earth Science
H4224.445282 / M3