@misc{indiciaeefd1fddb3236,
  title = {Ramjet cost estimating handbook},
  author = {Emmons, H. T. and Norwood, D. L. and Rasmusen, J. E. and Reynolds, H. E.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19790021017},
  note = {Source identifier: 19790021017}
}