APA (7th ed.) Citation

Freeman, C. Optics in Security and Law Enforcement I. SPIE Digital Library.

Chicago Style (17th ed.) Citation

Freeman, Charles. Optics in Security and Law Enforcement I. SPIE Digital Library.

MLA (8th ed.) Citation

Freeman, Charles. Optics in Security and Law Enforcement I. SPIE Digital Library.

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