@misc{indiciae10f8cdb9417a,
  title = {New aids for instruction.},
  author = {M K Beyrer},
  year = {1976},
  doi = {10.1111/j.1746-1561.1976.tb02041.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/61334/},
  note = {Source identifier: 61334}
}