@misc{indiciae0ac58c930a56,
  title = {Correlation coefficients calculated on a world wide basis between observed Secchi depths and other simultaneously measured standard oceanographic parameters — Illustration, BHL page 40295636},
  year = {1973},
  url = {https://www.biodiversitylibrary.org/page/40295636},
  note = {Source identifier: page-40295636}
}