@misc{indiciaee470665768e1,
  title = {Operators manual for microdensitometer control program densitometer model PDS-1010G (modified). Program trace version 3B (section 3)},
  author = {Title, A. M.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19740022780},
  note = {Source identifier: 19740022780}
}