@misc{indiciae04ce9225cc61,
  title = {Regional evaluations of acid deposition effects on forests: Eastern spruce-fir},
  author = {A. H. Johnson and A. J. Friedland and E. K. Miller and J. J. Battles and Thomas G. Huntington and D. R. Vann and G. R. Strimbeck},
  year = {1992},
  url = {https://pubs.usgs.gov/publication/70205391},
  note = {Source identifier: 70205391}
}