01770oam 2200517 450 991071159370332120181024104145.0(CKB)5470000002484110(OCoLC)993749425(OCoLC)953291121(OCoLC)986217916(OCoLC)995470000002484110(EXLCZ)99547000000248411020170715d1968 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierThe Vigil Network preservation and access of data /by W.W. Emmett and R.F. HadleyWashington :United States Department of the Interior, Geological Survey,1968.1 online resource (iii, 21 pages) mapsGeological Survey circular ;460-CConservation networks"A U.S. contribution to the International Hydrological Decade."Includes bibliographical references (page 7).Vigil Network HydrologyUnited StatesInformation servicesHydrologyInternational cooperationHydrologyInformation servicesfastUnited StatesfastHydrologyInformation services.HydrologyInternational cooperation.HydrologyInformation services.Emmett William W.1408939Hadley R. F(Richard Frederick),1924-1388556Geological Survey (U.S.),OCLCEOCLCECOPOCLCFOCLCAOCLCQGPOBOOK9910711593703321The Vigil Network3505631UNINA