@misc{indiciae487fb7d0a6ca,
  title = {Copyright Record Book Class R Vol 49 PART 2; Renewal Numbers 48500-48999; 1949},
  year = {1949},
  url = {https://www.loc.gov/item/coprecbooks-00497912726/},
  note = {Source identifier: coprecbooks-00497912726}
}