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- 74155107 contributor B2444865.
- 74155107 created "1971.".
- 74155107 date "1971".
- 74155107 date "1971.".
- 74155107 dateCopyrighted "1971.".
- 74155107 description "Includes bibliographies.".
- 74155107 extent "x, 429 p., 9 plates.".
- 74155107 identifier "0852741391".
- 74155107 issued "1971".
- 74155107 issued "1971.".
- 74155107 language "eng".
- 74155107 publisher "London, Hilger,".
- 74155107 subject "001.56".
- 74155107 subject "BF241 .P43".
- 74155107 subject "Light Congresses.".
- 74155107 subject "Signals and signaling Congresses.".
- 74155107 subject "Visual perception Congresses.".
- 74155107 title "The Perception and application of flashing lights: an international symposium held at Imperial College, London, under the joint auspices of the National Illumination Committee of Great Britain and the Applied Optics Section, Imperial College, on 19-22 April 1971.".
- 74155107 type "text".