PIA Work Group. 1987. Problem identification and analysis report. Report submitted to the Environmental Management Coordinating Committee, March 18, 1987. 58 pp.
U.S. Fish and Wildlife Service. 1987. Action Plan Report - Integrated Data Management System (IDMS). Report prepared by the U.S. Fish and Wildlife Service, March 10, 1987. 31 pp.
U.S. Fish and Wildlife Service. 1987. Environmental Management Program, Resource Trend Analysis Action Plan Report. Environmental Management Technical Center, La Crosse, Wisconsin, March 1987. 87 pp.