@misc{indiciae157fb4e3c13d,
  title = {National Educators' Workshop: Update 1996},
  author = {Gardner, James E. and Freeman, Ginger L. and Jacobs, James and Parkin, Don M.},
  year = {1997},
  url = {https://ntrs.nasa.gov/citations/19980010742},
  note = {Source identifier: 19980010742}
}