Cita APA

Al-Khalili,Jim. (2012). Black Holes,Worm Holes and Time Machines (2nd.). CRC Press.

Chicago Edition Citation

Al-Khalili,Jim. Black Holes,Worm Holes and Time Machines. 2nd. Boca Roton: CRC Press, 2012.

Cita MLA

Al-Khalili,Jim. Black Holes,Worm Holes and Time Machines. 2nd. CRC Press, 2012.

Atenció: Aquestes cites poden no estar 100% correctes.