by Linda Starke , Brian Halweil , Lisa Mastny , Erik Assadourian , Christopher Flavin , Hilary French , Gary Gardner , Danielle Nierenberg , Sandra Postel , Michael Renner , Radhika Sarin , Janet Sawin , Amy Vickers , The Worldwatch Institute
United States. Congress. Commission on Security and Cooperation in Europe
South Carolina. General Assembly. Legislative Audit Council.
United States. General Accounting Office. Accounting and Information Management Division
Robert O'Brien
Donella H. Meadows
