| Heliometer Observations for Determination of Stellar Parallax Made at the Royal Observatory, Cape of Good Hope (Classic Reprint) | | Author:
| Gill, David | ISBN: | 978-1-5280-0446-6 | Publication Date: | Oct 2017 | Publisher: | Forgotten Books
| Book Format: | Paperback | List Price: | USD $10.57 |
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