Participation in performance-evaluation studies by U.S. Geological Survey, National Water Quality Laboratory.
Contributors: Geological Survey (U.S.)
Series: Fact sheet -- FS-023-98.; Fact sheet (Geological Survey (U.S.)) -- FS-98-023.
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey
Published: 1998
Place of publication: [Reston, Va.]
Language: eng
Subjects: Geological Survey (U.S.); National Water-Quality Laboratory (U.S.); Water -- Sampling -- United States.; Environment sampling -- United States.
Other titles: Participation in performance evaluation studies by U.S. Geological Survey, National Water Quality Laboratory.
Notes: Caption title.

Shipping list no.: 98-0210-P.

"April 1998"--P. 6.

Includes bibliographical references (p. 6).