Characteristics of visually impaired persons United States, July 1963-June 1964 ; statistics on vision impairments for persons 6 years and older by degree of impairment
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| Format: | UnknownFormat |
| Veröffentlicht: |
Washington/D. C.
Gov. Pr. Off.
1968
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| Schriftenreihe: | Vital and Health Statistics, Data from the National Health Survey
National Center for Health Statistics, Series 10,46 Public Health Service Publication 1000-series 10,46 |
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Tag hinzufügen | Beschreibung: | IV, 76 S |
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