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"Limits of Oceans and Seas"(PDF) (3 ed.). International Hydrographic Organization. 1953. p. 23. Archived from the original(PDF) on 8 October 2011. Retrieved 28 December 2020.
"Limits of Oceans and Seas"(PDF) (3 ed.). International Hydrographic Organization. 1953. p. 23. Archived from the original(PDF) on 8 October 2011. Retrieved 28 December 2020.