Alexander, J. Security Systems and Nonlethal Technologies for Law Enforcement. SPIE Digital Library.
Cita Chicago (17th ed.)Alexander, John. Security Systems and Nonlethal Technologies for Law Enforcement. SPIE Digital Library.
Cita MLA (8th ed.)Alexander, John. Security Systems and Nonlethal Technologies for Law Enforcement. SPIE Digital Library.
Atenció: Aquestes cites poden no estar 100% correctes.