Shapley, H., & Paraskevopoulos, J. S. (1940). Galactic and Extragalactic Studies: III. Photographs of Thirty Southern Nebulae and Clusters.
Styl ChicagoShapley, Harlow, a J. S. Paraskevopoulos. Galactic and Extragalactic Studies: III. Photographs of Thirty Southern Nebulae and Clusters. 1940.
Citace podle MLAShapley, Harlow, a J. S. Paraskevopoulos. Galactic and Extragalactic Studies: III. Photographs of Thirty Southern Nebulae and Clusters. 1940.
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