21. National water quality network [annual compilation of data], statistical summary of selected data, Oct. 1, 1957-Sept. 30, 1958, Federal, State and local cooperative report on water quality determinations of surface waters at selected locations throughout United States, supp. 1. Bookmark Corporate/Agency Authors: Public Health Service and Health, Education and Welfare Dept. Publisher: Public Health Service Date: [1959, published 1960.] SuDoc number: FS 2.84/2:958/supp.1 and FS 2.84/2:supp.1