APA-referens (7:e uppl.)

Abetti, G. (1968). The exploration of the universe (Translated by V. Barocas.). Faber and Faber.

Chicago-referens (17:e uppl.)

Abetti, Giorgio. The Exploration of the Universe. Translated by V. Barocas. London: Faber and Faber, 1968.

MLA-referens (8:e uppl.)

Abetti, Giorgio. The Exploration of the Universe. Translated by V. Barocas. Faber and Faber, 1968.