@misc{indiciae4b9ff2d4eee7,
  title = {Copyright Record Book Class R Vol 73 PART 1; Renewal Numbers 72000-72499; 1950-1951},
  year = {1950},
  url = {https://www.loc.gov/item/coprecbooks-00497913147/},
  note = {Source identifier: coprecbooks-00497913147}
}