1. Congressional Quarterly Weekly Report, 1984 . "Senate Votes to Toughen Toxic Waste Law." (July 28): 1817 .
2. Mary Etta Cook, and Roger H. Davidson . 1984 . "Deferral Politics: Congressional Decision Making on Environmental Issues in the 1980s," paper presented at Annual Meeting of American Political Science Association, Washington. D.C.
3. Whither environmental progress?