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The Sewage Pollution of Streams: Its Relation to the Public Health
Notes and References
This item contains 2 references.
1Johnson, George A., The Purification of Public Water Supplies, Water-Supply Paper No. 315, U. S. Geological Suirvey, W asbington, 1913.
2Johnson, George A., The Tl yphoidi 'l'oll, Jour. Am. Waterwks. Assn., V"ol. III, No. 2, June, 1916, p. 252.