✦ LIBER ✦
Can normal outdoor activities be carried out during civil twilight?
✍ Scribed by Leibowitz, Herschel W. ;Owens, D. A.
- Book ID
- 115341630
- Publisher
- The Optical Society
- Year
- 1991
- Tongue
- English
- Weight
- 363 KB
- Volume
- 30
- Category
- Article
- ISSN
- 1559-128X
No coin nor oath required. For personal study only.