APA (7th ed.) Citation

Society of Photo-optical Instrumentation Engineers & Fagan, W. F. (1990). Optical security and anticounterfeiting systems: 15-16 January 1990, Los Angeles, California. SPIE--the International Society for Optical Engineering.

Chicago Style (17th ed.) Citation

Society of Photo-optical Instrumentation Engineers and William F. Fagan. Optical Security and Anticounterfeiting Systems: 15-16 January 1990, Los Angeles, California. Bellingham, Wash., USA: SPIE--the International Society for Optical Engineering, 1990.

MLA (8th ed.) Citation

Society of Photo-optical Instrumentation Engineers and William F. Fagan. Optical Security and Anticounterfeiting Systems: 15-16 January 1990, Los Angeles, California. SPIE--the International Society for Optical Engineering, 1990.