@misc{indiciae6e136f6ffc78,
  title = {The contributions of Donald Lee Johnson to understanding the Quaternary geologic and biogeographic history of the California Channel Islands},
  author = {Daniel R. Muhs},
  year = {2013},
  url = {https://pubs.usgs.gov/publication/70125277},
  note = {Source identifier: 70125277}
}