Clocks, Scales and Measurements
Robson, Pam
Notes
How scales and units of measurement were developed and how they are used.
Size: 9 up
upper age: 99
no information
| ISBN: | 074961174X |
| pub: | 1993 |
| Subjects |
|---|
| WEIGHTS (MEASUREMENT) |
| SOLAR SYSTEM |
| Measurement |