Omega table : area 12, North Atlantic, pair G-D, (Trinidad-North Dakota, U.S.A.).

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, 1971

Omega propagation correction tables for 3.4kHz : area 12, North Atlantic, station A, (Norway).

Washington : U.S. Dept. of Defense, Defense Mapping Agency, Hydrographic Center, 1976

Omega propagation correction tables for 10.2 kHz : area 12, North Atlantic Station G (Trinidad).

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

Omega propagation correction tables for 3.4 kHz : area 12, North Atlantic station D (North Dakota).

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

Omega propagation correction tables for 3.4 kHz : area 12, North Atlantic station C, (Hawaii).

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

Omega propagation correction tables for 3.4 kHz : area 12, north Atlantic, station G (Trinidad) /

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, 1972

Omega propagation correction tables for 13.6 kHz : area 12, North Atlantic station C (Hawaii).

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 12, North Atlantic, pair B-E (Liberia - Reunion).

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

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

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 12, north Atlantic station A (Norway) /

Washington, D.C. : The Center, 1985

Omega propagation correction tables for 10.2 kHz : area 02, central U.S.S.R., station A (Norway) /

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