Cita APA (7th ed.)

Gould, B. A. (1897). Cordoba photographs: Photographic observations of star-clusters. The Nichols Press.

Cita Chicago (17th ed.)

Gould, Benjamin Apthorp. Cordoba Photographs: Photographic Observations of Star-clusters. Lynn: The Nichols Press, 1897.

Cita MLA (9th ed.)

Gould, Benjamin Apthorp. Cordoba Photographs: Photographic Observations of Star-clusters. The Nichols Press, 1897.