00570nam a2200145Ia 4500 190328s9999||||xx |||||||||||||| ||und|| NITIL NITIL 21st 333.91 U58M United Nations. Economic Commission for Europe Manual for the compilation of balances of water resources of needs New York United Nations 1974 viii, 80p. Water supply-United States; Water resources development-United States; Water quality management-United States; Water conservation-United States BKS 2571 2571 0 0 DDC 0 0 NITIL NITIL 2019-04-02 0 333.91 U58M 88985 2019-04-02 00:00:00 2019-04-02 BKS