samuel-c-pennington-v-united-states-postal-service-magazine-publishers , 627 F.2d 534 ( 1980 )
national-association-of-greeting-card-publishers-v-united-states-postal , 607 F.2d 392 ( 1979 )
association-of-american-publishers-inc-v-the-governors-of-the-united , 485 F.2d 768 ( 1973 )