Water supply. Southwest Navajo country, by Herbert E. Gregory U.S.G.S. Water- united states geological survey supply paper 380. Fiiea with Hayden & mic. doc. How the Salt Cedar shrub -is using up the water of the Southwest. Post Empire . Sept. 21, 1958 p.14 Description of Salt River Project - tremendous southwestern water project. Arizona Highways v.27 #4 April, 1961 p.2-15 Needs better conservation measures. RMN My 28, 1966 p.25
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