@misc{indiciae50c4ed1dda72,
  title = {Copyright Record Book Class R Vol 104 PART 1; Renewal Numbers 103000-103499; 1952},
  year = {1952},
  url = {https://www.loc.gov/item/coprecbooks-00497870331/},
  note = {Source identifier: coprecbooks-00497870331}
}