Books
2 results found| Title | Authors | Description | OpenBook ID | |
|---|---|---|---|---|
|
How do you measure time? | Thomas K. Adamson | "Simple text and color photographs describe the units and tools used to measure time-- | OL15118234W |
|
How long is a year? | Claire Clark | "Simple text and photos explain a year as a unit of time and Earth's orbit of the sun"-- | OL16505930W |