http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
USA: ATLANTIC patrols: Navy Western Hemisphere Defence Plan 2 1941
Reproduction of: USA: ATLANTIC patrols: Navy Western Hemisphere Defence Plan 2 Apr-41.
USA: ATLANTIC patrols: Navy Western Hemisphere Defence Plan 2