Data on the distribution and abundance of submersed aquatic vegetation in the tidal Potomac River and transition zone of the Potomac Estuary, Maryland, Virginia, and the District of Columbia, 1988
By: by Nancy Rybicki and M.R. Schening
Contributors: Schening, M. R; Geological Survey (U.S.)
Series: U.S. Geological Survey open-file report -- 90-123
Publisher: U.S. Dept. of the Interior, Geological Survey; U.S. Geological Survey, Books and Open-File Reports Section [distributor]
Published: 1990
Place of publication: Reston, Va; Denver, Colo
Language: eng
Format: Microform
Number of pages: 19
Subjects: Freshwater plants -- Potomac River; Stream ecology -- Potomac River
Notes: Cover title

Distributed to depository libraries in microfiche

Includes bibliographical references (p. 18-19)

Microfiche. [Denver, Colo. : U.S. Geological Survey, 1990?] 1 microfiche : negative