@misc{indiciae127cef678084,
  title = {The dual matrix and other environmental impact assessment methods},
  author = {Joan G. Trial and L.M. Demion and J.G. Stanley},
  year = {1980},
  url = {https://pubs.usgs.gov/publication/fwsobs80\_32},
  note = {Source identifier: fwsobs80\_32}
}