@misc{indiciae2d38aad88ab4,
  title = {Particle size of sediments collected from the bed of the Amazon River and its tributaries in June and July 1976},
  author = {Carl F. Nordin and R.H. Meade and H.A. Mahoney and B.M. Delany},
  year = {1977},
  doi = {10.3133/ofr77400},
  url = {https://pubs.usgs.gov/publication/ofr77400},
  note = {Source identifier: ofr77400}
}