A study of trends in total phosphorus measurements at NASQAN stations
By: by Richard A. Smith, Robert M. Hirsch, and James R. Slack.
Contributors: Hirsch, Robert M.; Slack, James Richard, 1944-
Series: Geological Survey water-supply paper ;; 2190; U.S. Geological Survey water-supply paper ;; 2190.
Publisher: U.S. G.P.O.; For sale by Distribution Branch, Text Products Section, U.S. Geological Survey
Published: 1982
Place of publication: [Washington]; Alexandria, Va
Language: eng
Number of pages: 34
Subjects: Water -- Phosphorus content.; Water quality -- United States.
Notes: Bibliography: p. 34.