@misc{indiciaea0275cc83eb1,
  title = {Willie takes a field trip; coloring book},
  author = {Donald V. Arvin},
  year = {1990},
  doi = {10.3133/ofr90125},
  url = {https://pubs.usgs.gov/publication/ofr90125},
  note = {Source identifier: ofr90125}
}