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| Utgitt
| Philadelphia : Chilton Books , [c1963]
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| Omfang
| xiii, 434 p. : illus., port., diagrs.
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|---|
| Utgave
| |
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| Opplysninger
| "Suggested further readings on vision of children": p. 399-403. Bibliography: p. 405-420.. - "The second volume of the Optometric symposia series."
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| Emner
| |
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