Creator
- Argentina. Dirección Meteorológica1
- Argentina. Dirección de Economía Rural y Estadística1
- Arkansas. Land Survey Division1
- Army Service Schools (U.S.)1
- Arnold, C. E. (Charles Edward), 1866-19021
- Artaria & Co.1
- Artillery School (Fort Monroe, Va.)1
- Ashley, Geo. H. (George Hall), 1866-19511
- Asia--Amu Darya1
- Aspin, J1
- Aspioti-ELKA (Firm)1
- Assheton, J. T1
- Associated Billposters & Distributors Pro. Co.1
- Association des intérêts de Genève1
- Atlantic City Expressway Authority (N.J.)1
- Atwood, J. M., fl. 1840-18651
- August Gast & Co.1
- Australia. Department of Defence1
- Australia. Department of Home and Territories1
- Australia. Department of Works. Lands and Survey Branch1