Kennedy, J. B. (2003). Space, time and Einstein: An introduction. Acumen.
Cita Chicago (17th ed.)Kennedy, J. B. Space, Time and Einstein: An Introduction. Chesham [England]: Acumen, 2003.
Cita MLA (9th ed.)Kennedy, J. B. Space, Time and Einstein: An Introduction. Acumen, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.