@misc{indiciae6773c04342fc,
  title = {The visual instruction system.},
  author = {J E Seat and C A Wrisberg},
  year = {1996},
  doi = {10.1080/02701367.1996.10607932},
  url = {https://pubmed.ncbi.nlm.nih.gov/8736001/},
  note = {Source identifier: 8736001}
}