Cita APA (7a ed.)

Gribbin, J. R. (1976). Astronomy for the amateur. Macmillan.

Cita Chicago Style (17a ed.)

Gribbin, John R. Astronomy for the Amateur. London: Macmillan, 1976.

Cita MLA (8a ed.)

Gribbin, John R. Astronomy for the Amateur. Macmillan, 1976.