+Parton, N/elson/ H/oratio/
Geology and underground waters of the Arkan-
sas valley in eastern Colorado.
^:o Washingtq^n 1^06.
Se: Survey, United States geological. Pro-
fessional paper. No. $2. ^.Gk<%i^'^'?
¿AM^l^ /y^^ ifcL^ J

{
  "author": "Darton, Nelson Horatio",
  "title": "Geology and underground waters of the Arkansas valley in eastern Colorado.",
  "year": "1906"
}

+ Parton, N/elson/ H/oratio/
Geology and underground waters of the Arkan-
sas valley in eastern Colorado.
4:0 Washington 1906.
Se : Survey, United States geological. Pro-
fessional paper. No. 52. FPTaluuet- )
/530

{
  "author": "Parton, N/elson H/oratio",
  "location": "Washington",
  "title": "Geology and underground waters of the Arkanas valley in eastern Colorado.",
  "year": "1906"
}