Galactic and extragalactic studies
Subtitle: IV : Photometry of two large southern clusters of galaxies
By: by Harlow Shapley and Constance D. Boyd
Series: Harvard reprint -- 185
Publisher: Astronomical Observatory of Harvard College
Published: 1940
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 49
Other titles: Photometry of two large southern clusters of galaxies
Notes: Reprinted from the Proceedings of the National Academy of Sciences, Vol. 26, no. 1, pp. 41-49, January 1940.

Includes bibliographical references.