Readability of alphanumeric characters having various contrast levels as a function of age and illumination mode /
| Main Author: | |
|---|---|
| Corporate Authors: | , |
| Other Authors: | , |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
Dept. of Transportation, Federal Aviation Administration, Office of Aviation Medicine,
1977.
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| Subjects: |