Omega plotting chart : [7600 series] /
United States.Defense Mapping Agency.Hydrographic/Topographic Center.
Washington, D.C. : The Center,
[1975]-
Relief shown by spot heights.
"Frequency 10.2 kHz."
Includes index of adjoining charts.
Incomplete: Sheets 7676, 7678 and 7693 (covering parts of the South Pacific Ocean) only.
Plotting charts.