Citations
Information on the Photographic Zenith Tube (PZT) observing programme for 1958 and notes on results, 1957 - 1958, GBR/0180/RGO 43/200, Box 20: RGO 43/187-200: Series GBR/0180/RGO 43. Cambridge University Library. |
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Information on the Photographic Zenith Tube (PZT) observing programme for 1958 and notes on results, 1957 - 1958, GBR/0180/RGO 43/200, Box 20: RGO 43/187-200: Series GBR/0180/RGO 43. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/2038354 Accessed May 19, 2025. |