APA (7th ed.) Citation

Fagan, W. Optical Security and Anticounterfeiting Systems. SPIE Digital Library.

Chicago Style (17th ed.) Citation

Fagan, William. Optical Security and Anticounterfeiting Systems. SPIE Digital Library.

MLA (8th ed.) Citation

Fagan, William. Optical Security and Anticounterfeiting Systems. SPIE Digital Library.

Warning: These citations may not always be 100% accurate.