United States of America, and Cross v. Earth Sciences, Inc., and Cross , 599 F.2d 368 ( 1979 )
environmental-defense-fund-inc-v-environmental-protection-agency-ad-hoc , 636 F.2d 1267 ( 1980 )
Wickard v. Filburn , 63 S. Ct. 82 ( 1942 )
National League of Cities v. Usery , 96 S. Ct. 2465 ( 1976 )