Citations
Correspondence with the Helsinki Observatory, 1960, GBR/0180/RGO 9/481. Cambridge University Library. |
|
Correspondence with the Helsinki Observatory, 1960, GBR/0180/RGO 9/481. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/99996 Accessed May 02, 2024. |