TY - BOOK AU - Hardy,E.D. TI - Transactions of the American Society of Civil Engineers, vol. LXXII, June, 1911: Water Purification Plant, Washington, D. C. Results of Operation AV - TA PY - 2008/// PB - Project Gutenberg KW - Water treatment plants KW - Civil engineering -- Periodicals N1 - Public domain in the USA; Electronic text UR - http://www.gutenberg.org/ebooks/27632 ER -