Primary productivity by phytoplankton in the tidal, fresh Potomac River, Maryland, May 1980 to August 1981
By: by Ronald R.H. Cohen and Sheryl O. Pollock
Contributors: Pollock, Sheryl O; Geological Survey (U.S.)
Series: Water-resources investigations report -- 83-4255; Water-resources investigations report -- 83-4255
Publisher: U.S. Dept. of the Interior, Geological Survey; U.S. Geological Survey, Open-File Services Section, Western Distribution Branch [distributor]
Published: 1983
Place of publication: Reston, Va; Denver, Colo
Language: eng
Number of pages: 76
Subjects: Phytoplankton -- Potomac River; Potomac River
Notes: Bibliography: p. 27-28