@misc{indiciae6a97b6115995,
  title = {Copyright Record Book Class R Vol 68 PART 2; Renewal Numbers 67500-67999; 1950},
  year = {1950},
  url = {https://www.loc.gov/item/coprecbooks-0049791307A/},
  note = {Source identifier: coprecbooks-0049791307A}
}