Cita APA (7th ed.)

Hoyle, F. (1963). Frontiers of astronomy. Heimemann Educational.

Cita Chicago (17th ed.)

Hoyle, Fred. Frontiers of Astronomy. London: Heimemann Educational, 1963.

Cita MLA (9th ed.)

Hoyle, Fred. Frontiers of Astronomy. Heimemann Educational, 1963.