@misc{indiciaeb0fc8992a994,
  title = {New aids for instruction.},
  author = {M K Beyrer},
  year = {1975},
  doi = {10.1111/j.1746-1561.1975.tb04522.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/52761/},
  note = {Source identifier: 52761}
}