- General Drafting Co (New York), 1925 (1)
- General Land Office (Washington) (1)
- General Service Schools (Fort Leavenworth, Kan) (1)
- Generalst. Litogr. Anstalt (Stockholm), 1925 (1)
- Geographia Ltd (London), 1925 (1)
- Geographical Pub. Co (Chicago) (1)
- Geological Survey Office (Pretoria) (1)
- Geologicheskii komitet (Leningrad) (1)