Omega propagation correcton tables for 13.6 kHz : area 18, south Atlantic, station D (North Dakota) /

Washington : Dept. of Defense [Office of the Under Secretary of Defense for Research and Engineering], Defense Mapping Agency, Hydrographic/Topographic Center : For sale by authorized sales agents of the Defense Mapping Agency Hydrographic/Topographic Center, 1978

Omega table : area 18, south Atlantic, pair B-E (Liberia-Reunion).

Washington : Dept. of Defense [Office of the Under Secretary of Defense for Research and Engineering], Defense Mapping Agency, Hydrographic Center : For sale by authorized Sales Agents of the Defense Mapping Agency, Hydrographic Center, 1978

Omega table : area 18, South Atlantic, pair A-B (Norway-Liberia).

Washington : [Dept. of Defense], Defense Mapping Agency, Hydrographic Center : for sale by authorized Sales Agents of the Defense Mapping Agency Hydrographic Center, 1978

Omega table : area 18, South Atlantic, pair A-D (Norway--North Dakota, U.S.A.).

Washington : Dept. of Defense, Defense Mapping Agency, Hydrographic Center : For sale by authorized Sales Agents of the Defense Mapping Agency, Hydrographic Center, 1976

Omega table : area 18, South Atlantic, pair A-F (Norway--Reunion).

Washington : Dept. of Defense, Defense Mapping Agency, Hydrographic Center : For sale by authorized Sales Agents of the Defense Mapping Agency, Hydrographic Center, 1976

Omega table : area 17, East Pacific, pair G-C (Trinidad--Hawaii, U.S.A.).

Washington : Dept. of Defense, Defense Mapping Agency, Hydrographic Center : For sale by authorized Sales Agents of the Defense Mapping Agency, Hydrographic Center, 1976

Omega table : area 18, South Atlantic, pair A-C (Norway--Hawaii, U.S.A.).

Washington : Dept. of Defense, Defense Mapping Agency, Hydrographic Center : For sale by the authorized Sales Agents of the Defense Mapping Agency, Hydrographic Center, 1977

Omega propagation correction tables for 13.6 kHz : area 18, South Atlantic Station B (Liberia).

Washington : Dept. of Defense [Office of the Under Secretary of Defense for Research and Engineering], Defense Mapping Agency, Hydrographic/Topographic Center : For sale by authorized sales agents of the Defense Mapping Agency Office of Distribution Services, 1978

Omega propagation correction tables for 13.6 kHz : area 18, South Atlantic, station F (Argentina).

Washington : Dept. of Defense [Office of the Under Secretary of Defense for Research and Engineering], Defense Mapping Agency, Hydrographic/Topographic Center : For sale by authorized sales agents of the Defense Mapping Agency Office of Distribution Services, 1978

Omega propagation correction tables for 13.6 kHz : area 18, South Atlantic, station A (Norway).

Washington : Dept. of Defense [Office of the Under Secretary of Defense for Research and Engineering], Defense Mapping Agency, Hydrographic/Topographic Center : For sale by authorized sales agents of the Defense Mapping Agency Office of Distribution Services, 1978

Omega propagation correction tables for 10.2 kHz : area 12, north Atlantic, station E (Reunion) /

Washington, D.C. : The Center : For sale by authorized Sales Agents of the Defense Mapping Agency Office of Distribution Services, 1984

Omega propagation correcton tables for 10.2 kHz : area 18, South Atlantic, station D (North Dakota) /

Washington, D.C. : The Center : For sale by authorized Sales Agents of the Defense Mapping Agency Office of Distribution Services, 1985

Omega propagation correction tables for 10.2 kHz : area 18, south Atlantic, station B (Liberia) /

Washington, D.C. : The Center : For sale by authorized Sales Agents of the Defense Mapping Agency Office of Distribution Services, 1984

Omega propagation correction tables for 10.2 kHz : area 18, south Atlantic, station E (Reunion) /

Washington, D.C. : The Center : For sale by authorized Sales Agents of the Defense Mapping Agency Office of Distribution Services, 1984