@misc{indiciae40766a079631,
  title = {Geology of the Littleton quadrangle, Jefferson, Douglas, and Arapahoe counties, Colorado},
  author = {Glenn R. Scott},
  year = {1962},
  doi = {10.3133/b1121l},
  url = {https://pubs.usgs.gov/publication/b1121L},
  note = {Source identifier: b1121L}
}