Dangers from color blindness in railroad employees and pilots / by B. Joy Jeffries.
- Jeffries, B. Joy, 1853-
- Date:
- 1878
Licence: Public Domain Mark
Credit: Dangers from color blindness in railroad employees and pilots / by B. Joy Jeffries. Source: Wellcome Collection.
Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)
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