Cita APA

Penrose, R. (2011). Roger penrose collected works. Vol.3.

Chicago Edition Citation

Penrose, Roger. Roger Penrose Collected Works. Vol.3. Oxford Clarendon Press, Oxford, 2011.

Cita MLA

Penrose, Roger. Roger Penrose Collected Works. Vol.3. 2011.

Atenció: Aquestes cites poden no estar 100% correctes.