| 其他書名 | Keeping time through the ages: the history of tools used to measure time |
| 文獻類型 | BOOK |
| 語言 | English |
| 分類號 | 529.7 LEV |
| 出版 | Rosen Ppublishing Group, Inc., New York, N.Y. :, c2004 |
| 主題 | Time measurements -- Nstruments -- Juvenile literature. |
| 題目 | Time measurements.Clocks and watches. |
| 叢書 | Math for the real world # |
| 描述 | 32 p. ;ill. (some col.);23 cm. |
| ISBN | 9780823989171 |