West Penn Power Company, a Corporation v. Russell Train, Administrator of the Environmental Protection Agency of Theunited States of America , 522 F.2d 302 ( 1975 )
Dunlop v. Bachowski , 95 S. Ct. 1851 ( 1975 )
Union Electric Co. v. Environmental Protection Agency , 96 S. Ct. 2518 ( 1976 )