Subject
- Coffee5
- Customs administration5
- International relations5
- Labour disputes5
- Political reform5
- Public opinion5
- Transshipment5
- Wheat5
- Aerial reconnaissance4
- Air services agreements4
- Air travel4
- Arms control4
- Concessions4
- Conditions of employment4
- Equipment4
- Food prices4
- Gifts4
- Health services4
- Import control4
- Military aviation4