@misc{indiciae1403bf21f96f,
  title = {Extensive inventory of forest resources by multistage sampling},
  author = {Aldrich, R. C. and Dana, R. W. and Roberts, E. H.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770010601},
  note = {Source identifier: 19770010601}
}