Gaskell, T. F., and G. S. Ritchie. “H.M.S. Challenger’s World Voyage 1950-52, Part I. Atlantic &Amp; Pacific”. The International Hydrographic Review, no. 2 (May 14, 2018). Accessed June 18, 2024. https://journals.lib.unb.ca/index.php/ihr/article/view/26805.