@misc{indiciae2b387fbefda7,
  title = {Engineering design and appropriate technology.},
  author = {M K McPhun},
  year = {1981},
  doi = {10.3109/03091908109042443},
  url = {https://pubmed.ncbi.nlm.nih.gov/7277450/},
  note = {Source identifier: 7277450}
}