Type XXI U-boat
URI(s)
- http://id.loc.gov/authorities/subjects/sh2013002533
- http://id.loc.gov/authorities/sh2013002533#concept
Broader Terms
Closely Matching Concepts from Other Schemes
Sources
- found: Work cat: Kohl, F. The Type XXI U-boat, 1991.
- found: http://www.militaryfactory.com, website, Sept. 6, 2013(Type XXI U-boat)
- found: Wikipedia, Sept. 6, 2013(Type XXI U-boats were the first submarines designed to operate primarily submerged, rather than as surface ships that could submerge as a means to escape detection or launch an attack)
Instance Of
Scheme Membership(s)
Collection Membership(s)
Change Notes
- 2013-09-06: new
- 2013-12-03: revised
Alternate Formats