1. Gardner , B. D. S. H. Schick Factors affecting consumption of urban houshold water in northern UtahAgr. Exp. Sta. Bull. 449 Utah State University Logan 1964
2. The impact of price on residential water demand and its relation to system design and price structure;Howe;Water Resour. Res.,1967
3. North , R. M. Consumer responses to prices of residential waterGa. Agr. Exper. Sta. J. Ser. Pap. 185 University of Georgia Athens, Georgia 1967
4. Russell , C. S. The recent northeast drought: Short-run costs of water shortage and lessons for water systems planningHarvard Water Program, Discuss. Pap. 68-10 Harvard University Cambridge, Massachusetts 1968
5. Time capacity expansion of urban water systems;Scarato;Water Resour. Res.,1969