@misc{indiciaef78148d686d3,
  title = {Origin and structure of the Pensauken gravel},
  author = {Marius Robinson Campbell and Florence Bascom},
  year = {1933},
  doi = {10.2475/ajs.s5-26.153.300},
  url = {https://pubs.usgs.gov/publication/70241236},
  note = {Source identifier: 70241236}
}