@misc{indiciae78caa69e8e19,
  title = {Modular space station phase B extension program cost and schedules. Volume 2: Appendixes},
  author = {Frassinelli, G. J.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720011238},
  note = {Source identifier: 19720011238}
}