✦ LIBER ✦
Atomic clocks give more details on Earth's true shape
- Book ID
- 122643713
- Publisher
- Reed Business
- Year
- 2012
- Tongue
- English
- Weight
- 771 KB
- Volume
- 215
- Category
- Article
- ISSN
- 0262-4079
No coin nor oath required. For personal study only.