Distribution and abundance of submersed aquatic vegetation in the tidal Potomac River and upper Potomac Estuary, Maryland, Virginia, and the District of Columbia, 1993-1998
By: by Henry A. Ruhl ... [et al.]
Contributors: Ruhl, Henry A; Geological Survey (U.S.)
Series: U.S. Geological Survey open-file report -- 99-233
Publisher: Dept. of the Interior, U.S. Geological Survey; Branch of Information Services [distributor]
Published: 1999
Place of publication: Reston, Va; Denver, Colo
Language: eng
Format: Microform
Number of pages: 39
Subjects: Aquatic plants -- Potomac River; Water quality -- Potomac River; Potomac River; Potomac River Estuary
Notes: Cover title

Shipping list no.: 2000-0887-M

Includes bibliographical references (p. 4-5)

Microfiche. [Denver, CO : U.S. Geological Survey, 1999] 1 microfiche : negative