Investigation of the pollution and sanitary conditions of the Potomac watershed : with special reference to self purification and the sanitary condition of shellfish in the lower Potomac River . Plankton studies . Hydrographic studies

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書誌事項

タイトル
"Investigation of the pollution and sanitary conditions of the Potomac watershed : with special reference to self purification and the sanitary condition of shellfish in the lower Potomac River . Plankton studies . Hydrographic studies"
責任表示
by Hugh S. Cumming . by W.C. Purdy . by Homer P. Ritter
出版者
  • Govt. print., off
出版年月
  • 1916
書籍サイズ
23 cm

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注記

At head of title: Treasury Department. United States Public Health Service

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