Κανονική προβολή Προβολή MARC Προβολή ISBD

Smith, Richard A. 1945-

Analysis and interpretation of water-quality trends in major U. S. rivers, 1974-81 / by Richard A. Smith, Richard B. Alexander, and M. Gordon Wolman. - [Washington]: [United States Government printing office], [1987]. - iv, 25 p. : tables, maps ; 28 cm. - 2307 .

Includes bibliographical references (p. 22-25).

Subjects--Topical Terms:
Water quality--United States
Water chemistry
Rivers--United States

Dewey Class. No.: 551.483