@misc{indiciaed29db1282573,
  title = {New aids for instruction.},
  author = {M Beyrer},
  year = {1977},
  doi = {10.1111/j.1746-1561.1977.tb03119.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/72188/},
  note = {Source identifier: 72188}
}