@misc{indiciae108ec7bbd779,
  title = {Determination of the association and dissociation of humic acid fractions by small angle X-ray scattering},
  author = {D.J. Pinckney and R.L. Wershaw},
  year = {1973},
  url = {https://pubs.usgs.gov/publication/70162050},
  note = {Source identifier: 70162050}
}