Grids and magnetic declinations ...
Grids and magnetic declinations ...
- [Washington, 1945]
- 89 p. illus., fold. maps. 27 cm.
- Its A.M.S. memorandum no. 425 .
- United States. Army Map Service. Memorandum ; no. 425. 4th ed. .
"Amendment no. 1" ([2] p.) inserted.
map47000380
Military maps.
Geomagnetism.
UG470 / .U5 no. 425
"Amendment no. 1" ([2] p.) inserted.
map47000380
Military maps.
Geomagnetism.
UG470 / .U5 no. 425