Gould, B. A. (1897). Cordoba photographs: Photographic observations of star-clusters. The Nichols Press.
Chicago-čujuhus (17. p.)Gould, Benjamin Apthorp. Cordoba Photographs: Photographic Observations of Star-clusters. Lynn: The Nichols Press, 1897.
MLA-čujuhus (9. p.)Gould, Benjamin Apthorp. Cordoba Photographs: Photographic Observations of Star-clusters. The Nichols Press, 1897.
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