Cita APA (7a ed.)

Weigert, A., Zimmermann, H., & Dickson, J. H. (1967). ABC of astronomy. Hilger & Watts.

Cita Chicago Style (17a ed.)

Weigert, Arnold, Helmut Zimmermann, y J. Home Dickson. ABC of Astronomy. London: Hilger & Watts, 1967.

Cita MLA (9a ed.)

Weigert, Arnold, et al. ABC of Astronomy. Hilger & Watts, 1967.