Measurements of ultraviolet radiation and illumination in American cities, during the years 1931 to 1933.
| Corporate Author: | |
|---|---|
| Format: | Government Document eBook |
| Language: | English |
| Published: |
[Washington] :
[s.n.],
1937.
|
| Subjects: | |
| Online Access: | Electronic resource (PDF) |
| Item Description: | Includes illustrations. |
|---|---|
| Physical Description: | 1 online resource (39 pages), digital, PDF file |