@misc{indiciae7510a1450a05,
  title = {Should purchasing managers be certified?},
  author = {R L Pinkerton and W T Reynolds and R G Newman and J M Doyle},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/5024014/},
  note = {Source identifier: 5024014}
}