National Research Council (U.S.). Committee on Currency Features Usable by the Visually Impaired & ebrary, Inc. (1995). Currency features for visually impaired people. National Academy Press.
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Dyfyniad Arddull Chicago
National Research Council (U.S.). Committee on Currency Features Usable by the Visually Impaired and Inc ebrary. Currency Features for Visually Impaired People. Washington, DC: National Academy Press, 1995.
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Dyfyniad MLA
National Research Council (U.S.). Committee on Currency Features Usable by the Visually Impaired and Inc ebrary. Currency Features for Visually Impaired People. National Academy Press, 1995.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.