@misc{indiciaee96124243e3b,
  title = {Algal conditions and the potential for future algal problems in the Willamette River, Oregon},
  author = {David A. Rickert and R.R. Petersen and S. W. McKenzie and W. G. Hines and S.A. Wille},
  year = {1977},
  doi = {10.3133/cir715g},
  url = {https://pubs.usgs.gov/publication/cir715G},
  note = {Source identifier: cir715G}
}