✦ LIBER ✦
SOUND WAVES, TOO HIGH-PITCHED TO HEAR, ARE VALUABLE LABORATORY, INDUSTRIAL TOOLS
- Book ID
- 114970029
- Publisher
- School Science and Mathematics Association
- Year
- 1950
- Tongue
- English
- Weight
- 63 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0036-6803
No coin nor oath required. For personal study only.