Cita APA (7a ed.)

Hall, A. (1889). Determination of the orbit of Titan and the mass of Saturn. The Observatory.

Cita Chicago Style (17a ed.)

Hall, Asaph. Determination of the Orbit of Titan and the Mass of Saturn. New Haven: The Observatory, 1889.

Cita MLA (9a ed.)

Hall, Asaph. Determination of the Orbit of Titan and the Mass of Saturn. The Observatory, 1889.