United States, Defense Mapping Agency., Hydrographic Center. prepared and published by the Defense Mapping Agency, Hydrographic/Topographic Center. Depths shown by isolines and soundings. Relief shown by cont... Defense Mapping Agency, Hydrographic.
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United States, Defense Mapping Agency, Hydrographic Center. from British surveys between 1922 and 1826, with additions from British and French surveys to 1927 ; prepared and published by the Defense Mapping ... The Center.