http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
SOVIET UNION: CONVOYS: Provision of escorts 1942/04-1942/06
Reproduction of: SOVIET UNION: CONVOYS: Provision of escorts Apr - Jun 1942.
SOVIET UNION: CONVOYS: Provision of escorts