Gaya APA

Jones, B, Z. (1965). Lighthouse of the skies: the smithsonian astrophysical observatory background and history 1846-1955 . Washington DC: Smithson Institusion.

Gaya MLA

Jones, Bessie, Zaban.. "Lighthouse of the skies: the smithsonian astrophysical observatory background and history 1846-1955". Washington DC: Smithson Institusion, 1965. Printed Book.