Cita APA

Abell, G. O. (1964). Exploration of the universe. Holt, Rinehart and Winston.

Chicago Edition Citation

Abell, George O. Exploration of the Universe. New York: Holt, Rinehart and Winston, 1964.

Cita MLA

Abell, George O. Exploration of the Universe. Holt, Rinehart and Winston, 1964.