Cita APA (7a ed.)

Penrose, R., & Elfer, J. (2019). The Emperor's New Mind (1st edition.). Tantor Media, Inc.

Cita Chicago Style (17a ed.)

Penrose, Roger, y Julian Elfer. The Emperor's New Mind. 1st edition. Tantor Media, Inc, 2019.

Cita MLA (9a ed.)

Penrose, Roger, y Julian Elfer. The Emperor's New Mind. 1st edition. Tantor Media, Inc, 2019.