@misc{indiciaedf993a0ec751,
  title = {Cooccurrence of Fe-, Fe-Ca-, and Ca-phosphate minerals in concretions within the Monterey Formation; a record of uplift of the Santa Maria Basin, California},
  author = {D.Z. Piper and C.M. Isaacs and M.D. Medrano and Margaret A. Keller},
  year = {1993},
  doi = {10.3133/b1995c},
  url = {https://pubs.usgs.gov/publication/b1995C},
  note = {Source identifier: b1995C}
}