@misc{indiciae613c2a441213,
  title = {Guidelines for advanced manned space vehicle program, June 1960},
  author = {Gilruth, R. R. and Piland, R. O. and Faget, M. A. and White, S. C. and Chilton, R. C. and Donlan, C. J.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770022137},
  note = {Source identifier: 19770022137}
}