Dyfyniad APA

Jones, B. Z. (1965). Lighthouse of the skies: The Smithsonian Astrophysical Observatory: background and history, 1846-1955. Smithsonian Institute.

Dyfyniad Arddull Chicago

Jones, Bessie Zaban. Lighthouse of the Skies: The Smithsonian Astrophysical Observatory: Background and History, 1846-1955. Washington: Smithsonian Institute, 1965.

Dyfyniad MLA

Jones, Bessie Zaban. Lighthouse of the Skies: The Smithsonian Astrophysical Observatory: Background and History, 1846-1955. Smithsonian Institute, 1965.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.