Cita APA (7th ed.)

Dickinson, T. (1999). The universe and beyond (3rd ed.). Firefly Books.

Cita Chicago (17th ed.)

Dickinson, Terence. The Universe and Beyond. 3rd ed. Buffalo, N.Y.: Firefly Books, 1999.

Cita MLA (9th ed.)

Dickinson, Terence. The Universe and Beyond. 3rd ed. Firefly Books, 1999.