North Atlantic Ocean Station Charlie, April 1967 - April 1968 Hannon, Lawrence J. creator text book Washington U.S. Coast Guard Oceanographic Unit 1974 1974
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ENG Atlantic Ocean Oceanography GC511 .H35 1967 Oceanographic report (United States. Coast Guard. Oceanographic Unit), CG 373-61 https://www.biodiversitylibrary.org/bibliography/17015 2494391 10.5962/bhl.title.17015 DLM