Cita APA (7a ed.)

Flammarion, C. (1903). Urania. Ĺavenç.

Cita Chicago Style (17a ed.)

Flammarion, Camil. Urania. Barcelona: Ĺavenç, 1903.

Cita MLA (9a ed.)

Flammarion, Camil. Urania. Ĺavenç, 1903.