Subject
- Magnetic anomalies1
- Magnetic declination1
- Maps, Military1
- Migration, Internal1
- Military occupation1
- Military topography1
- Mineral industries1
- Nautical charts1
- Navigation (Aeronautics)1
- Normandy (France)1
- Occupied territories1
- Ocean currents1
- Oil wells1
- Outdoor recreation1
- Portuguese1
- Postal service1
- Postal zones1
- Sino-Japanese War, 1937-19451
- Slovenes1
- Snow removal1
