@misc{indiciae4d45c45bff9f,
  title = {Thread cutting with 3-axis N/C milling machine},
  author = {Salley, G. C. and Wood, C. H., Jr.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680000055},
  note = {Source identifier: 19680000055}
}