Library / Mathematics / The Psychology of Arithmetic / Braille
The Psychology of Arithmetic ⠃⠗⠋ braille edition
Grade 1 — uncontracted, letter-for-letter. Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 2 instead.
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536,202 braille cells · 555 embossed pages at 40×25 · 8,503 unrepresentable characters omitted
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