Cita APA

Heil, J. (2012). The universe as we find it (1a. ed.). Oxford University Press.

Citación estilo Chicago

Heil, John. The Universe as We Find It. 1a. ed. Oxford: Oxford University Press, 2012.

Cita MLA

Heil, John. The Universe as We Find It. 1a. ed. Oxford University Press, 2012.