Durfor, C. N., & Becker, E. (1964). Public water supplies of the 100 largest cities in the United States, 1962. Washington, D.C: U.S. Government Printing Office.
Παραπομπή Chicago StyleDurfor, Charles N., and Edith Becker. Public Water Supplies of the 100 Largest Cities in the United States, 1962. Washington, D.C: U.S. Government Printing Office, 1964.
Παραπομπή MLADurfor, Charles N., and Edith Becker. Public Water Supplies of the 100 Largest Cities in the United States, 1962. Washington, D.C: U.S. Government Printing Office, 1964.
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