Report of the results obtained with experimental filters at the Pettaconset pumping station of the Providence water works - Weston, Edmund B. (Edmund Brownell), 1849-1916,Rhode Island. State Board of Health

Report of the results obtained with experimental filters at the Pettaconset pumping station of the Providence water works

Воспроизведено в оригинальной авторской орфографии издания 1896 года (издательство "Providence, R.I., E. L. Freeman & sons, state printers").

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