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Franklyn M. Branley
Explains what comets are, how they are formed, and how their unusual orbits bring them into earth's view at predictable intervals, with a special focus on Halley's comet
| Publisher | Trophy Pr |
|---|---|
| Format | Paperback |
| Search language | english |
| ISBN_10 | 0-064-45088-0 primary |
| ISBN_13 | 978-0-064-45088-1 primary |
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