Nancy B. Rybicki

• A survey of potential dredge disposal sites in the tidal Potomac River and upper Potomac Estuary between Washington, D.C. and the Route 301 bridge
• Data on the distribution and abundance of submersed aquatic vegetation in the tidal Potomac River and estuary, Maryland, Virginia, and the District of Columbia, 1986
• 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, 1987