Cita APA (7th ed.)

Tyson, N. D. G. (1994). Universe down to Earth. Columbia University Press.

Cita Chicago (17th ed.)

Tyson, Neil De Grasse. Universe Down to Earth. New York: Columbia University Press, 1994.

Cita MLA (9th ed.)

Tyson, Neil De Grasse. Universe Down to Earth. Columbia University Press, 1994.