Cita APA (7a ed.)

YOURGRAU, P. (1999). Gödel meets Einstein: : Time Travel in the Gödel Universe. Open Court.

Cita Chicago Style (17a ed.)

YOURGRAU, Palle. Gödel Meets Einstein: : Time Travel in the Gödel Universe. Chicago and La Salle: Open Court, 1999.

Cita MLA (9a ed.)

YOURGRAU, Palle. Gödel Meets Einstein: : Time Travel in the Gödel Universe. Open Court, 1999.