Investigation of trends in flooding in the Tug Fork Basin of Kentucky, Virginia, and West Virginia /

Autor Hirsch, Robert M., Scott, Arthur G., Wyant, Timothy
Vydáno 1982

The stream-gaging program of the U.S. Geological Survey /

Autor Wahl, Kenneth L., Thomas, Wilbert O., 1943-, Hirsch, Robert M.
Vydáno 1995

Concepts for a national water-quality assessment program /

Autor Hirsch, Robert M., Alley, William M., 1952-, Wilber, William G.
Vydáno 1988

A study of trends in total phosphorus measurements at NASQAN stations /

Autor Smith, Richard A., 1945-, Hirsch, Robert M., Slack, James Richard, 1944-
Vydáno 1982