APA (7th ed.) Citation

Freeman, C. Low Light Level Devices for Science and Technolgy. SPIE Digital Library.

Chicago Style (17th ed.) Citation

Freeman, Charles. Low Light Level Devices for Science and Technolgy. SPIE Digital Library.

MLA (9th ed.) Citation

Freeman, Charles. Low Light Level Devices for Science and Technolgy. SPIE Digital Library.

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