Author: BERGSTRAND, Östen (1873-1948).: Title: Untersuchungen über das Doppelsternsystem 61 Cygni. [N. Acta R. Soc. Sci. Upsal., Ser. IV, 1(3).]
Description: Uppsala 1905. 4to, 27.2cm. Pp. [iv],121, 1 double-page graph, notes & refs. Plain new wrappers.
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Price: EUR 30.00 = appr. US$ 32.61 Seller: Aquila Natural History Books / Aquila Antiquariaat
- Book number: 9659