Mees, C. E. Kenneth (May 1954). "L. A. Jones and his Work on Photographic Sensitometry"(PDF). Image, Journal of Photography of George Eastman House. III (5). Rochester, N.Y.: International Museum of Photography at George Eastman House Inc.: 34–36. Archived from the original(PDF) on 20 July 2014. Retrieved 15 July 2014.
Mees, C. E. Kenneth (May 1954). "L. A. Jones and his Work on Photographic Sensitometry"(PDF). Image, Journal of Photography of George Eastman House. III (5). Rochester, N.Y.: International Museum of Photography at George Eastman House Inc.: 34–36. Archived from the original(PDF) on 20 July 2014. Retrieved 15 July 2014.