Author: Bos, Willem Hendrik van den.
Title: Micrometermetingen van dubbelsterren.
Description: Leidein, Ijdo, 1925. Later library cloth with original paper frontcover mounted. 55 pp. Thesis. University of Leiden. List of theses included. With tables. Deals with micrometermeasurements of double stars. Text in Dutch. A few library marks on title verso, ticket on cover. Mailorder only - Alleen verzending mogelijk. Book condition : good.

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