Observations of Colour Temperatures of Stars (Volume II: Relative Gradients) made at the Royal Observatory, Greenwich in the years 1926-1938;
Dysen, Frank and Spencer Jones:
Sold by books4less (Versandantiquariat Petra Gros GmbH & Co. KG), Welling, Germany
AbeBooks Seller since March 18, 2011
Used - Soft cover
Condition: Used - Very good
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