@misc{indiciae568e4d4b36ff,
  title = {Copyright Record Book Class R Vol 47 PART 1; Renewal Numbers 46000-46499; 1949},
  year = {1949},
  url = {https://www.loc.gov/item/coprecbooks-00497912672/},
  note = {Source identifier: coprecbooks-00497912672}
}