@misc{indiciae21348266e065,
  title = {Earthworks: Educating Teachers in Earth System Sciences},
  author = {Spetzler, H. and Weaver, A. and Buhr, S.},
  year = {2000},
  url = {https://ntrs.nasa.gov/citations/20000115868},
  note = {Source identifier: 20000115868}
}