district-50-united-mine-workers-of-america-v-national-labor-relations , 234 F.2d 565 ( 1956 )
retail-clerks-union-local-770-affiliated-with-retail-clerks-international , 370 F.2d 205 ( 1966 )
United Mine Workers of America v. Arkansas Oak Flooring Co. , 76 S. Ct. 559 ( 1956 )