@misc{indiciae6e7cb60e3167,
  title = {Shell analysis manual},
  author = {Baker, E. H. and Cappelli, A. P. and Kovalevsky, L. and Rish, F. L. and Verette, R. M.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680015330},
  note = {Source identifier: 19680015330}
}