Fagan, W. Holographic Optical Security Systems. SPIE Digital Library.
Cita Chicago (17th ed.)Fagan, William. Holographic Optical Security Systems. SPIE Digital Library.
Cita MLA (8th ed.)Fagan, William. Holographic Optical Security Systems. SPIE Digital Library.
Atenció: Aquestes cites poden no estar 100% correctes.