@misc{indiciae4b8945feaa44,
  title = {Copyright Record Book Class R Vol 73 PART 2; Renewal Numbers 72500-72999; 1950-1951},
  year = {1950},
  url = {https://www.loc.gov/item/coprecbooks-00497913159/},
  note = {Source identifier: coprecbooks-00497913159}
}