@misc{indiciaec7710140e3ba,
  title = {Planetary Quarantine Program Quarterly progress report, period ending 30 Jun. 1967},
  author = {Sivinski, H. D.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19670021418},
  note = {Source identifier: 19670021418}
}