U.S. EPA. 2000. Big Darby Creek Case Study: A Profile of Watershed Threats and Protection in a Midwest Landscape (PDF) (37 pp., 165K). EPA 841-B-00-004, Office of Water (4503T), U.S. EPA, Washington, DC.
U.S. EPA. 1997. Statewide Watershed Management Facilitation (PDF) (65 pp., 2 MB). (EPA841-R-97-011), Office of Water (4503F), U.S. EPA, Washington, DC.
U.S. EPA. 1997. Land Cover Digital Data Directory for the United States (PDF). (98 pp., 397K). (EPA 841-B-97-005), Office of Water (4503F), U.S. EPA, Washington, DC.
U.S. EPA. 1997. Designing an Information Management System for Watersheds (PDF) (30 pp., 667K). (EPA841-R-97-005), Office of Water (4503F), U.S. EPA, Washington, DC.
U.S. EPA. 1997. Information Management for the Watershed Approach in the Pacific Northwest (PDF) (81 pp., 513K). (EPA841-R-97-004), Office of Water (4503F), U.S. EPA, Washington, DC.