Cita APA (7a ed.)

HEIL, J. (2015). The Universe As We Find It. Clarendon Press.

Cita Chicago Style (17a ed.)

HEIL, John. The Universe As We Find It. Oxford: Clarendon Press, 2015.

Cita MLA (9a ed.)

HEIL, John. The Universe As We Find It. Clarendon Press, 2015.