Cita APA (7th ed.)

Jones, H. S. (1951). General astronomy (3rd ed.). Edward Arnold.

Cita Chicago (17th ed.)

Jones, H. Spencer. General Astronomy. 3rd ed. London: Edward Arnold, 1951.

Cita MLA (8th ed.)

Jones, H. Spencer. General Astronomy. 3rd ed. Edward Arnold, 1951.