@misc{indiciaed37097b56d8b,
  title = {Copyright Record Book Class R Vol 54 PART 2; Renewal Numbers 53500-53999; 1949},
  year = {1949},
  url = {https://www.loc.gov/item/coprecbooks-00497912817/},
  note = {Source identifier: coprecbooks-00497912817}
}