@misc{indiciae01139dc1939b,
  title = {ANOPP programmer's reference manual for the executive System},
  author = {Gillian, R. E. and Brown, C. G. and Bartlett, R. W. and Baucom, P. H.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770015902},
  note = {Source identifier: 19770015902}
}