References
- (1937) Agfa Rontgenblatter, 13
- Field, Samuel and Weill, Dudley (1946) Electro-plating, London.
- Henney and Dudley (1939) Handbook of Photography, New York.
- Hoke, C. M. (1940) Refining Precious Metal Wastes, New York.
- Longmore, T. A. (1949) Medical Photography, London.
- Meidinger, W. (1932) Handbuch der Wissenschaftlichen und Angewandten Photographie, Band V, Wien.
- Neblette, C. B. (1946) Photography, its Principles and Practice, New York.
- Weedon, Kaye (1945) Report on Silver Recovery and Regeneration of Fixing Bath, Oslo.