Cita APA (7th ed.)
Norman, T. P. (2012). Electronic access control. Butterworth-Heinemann.
Cita Chicago (17th ed.)
Norman, Thomas P. Electronic Access Control. Amsterdam: Butterworth-Heinemann, 2012.
Cita MLA (9th ed.)
Norman, Thomas P. Electronic Access Control. Butterworth-Heinemann, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.