| 000 | 00430nam a2200109Ia 4500 | ||
|---|---|---|---|
| 008 | 230624s9999 xx 000 0 und d | ||
| 100 | _aEdward C. Pickering | ||
| 245 | 2 | _aA Plan for Securing Observations of the Variable Stars | |
| 650 | _aAstronomy | ||
| 856 | _uhttps://new.zodml.org//sites/default/files/2023-06/a_plan_for_securing_observations_of_the_variable_stars_by_edward_c._pickering_tag_variable_stars.epub | ||
| 942 | _cEBK | ||
| 999 |
_c15997 _d15997 |
||