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- catalog contributor b3645847.
- catalog contributor b3645848.
- catalog created "[c1971]".
- catalog date "1971".
- catalog date "[c1971]".
- catalog dateCopyrighted "[c1971]".
- catalog extent "64 p.".
- catalog issued "1971".
- catalog issued "[c1971]".
- catalog language "eng".
- catalog publisher "New York, National Society for the Prevention of Blindness".
- catalog subject "Lenses.".
- catalog subject "Optics and Photonics".
- catalog subject "Vision Disorders rehabilitation.".
- catalog subject "Vision, Ocular".
- catalog subject "WW 350 S634r 1971".
- catalog title "Recommended aids for the partially sighted. Including A nontechnical explanation of basic optical principles [by] Louise L. Sloan and Stephen J. Ryan.".
- catalog type "text".