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New numbers.
Andrews, F. Emerson. 3939.426=**E.5129.291 New numbers. How acceptance of a duodecimal (12) base would simplify mathematics. [1st edition.] — New York. Harcourt, Brace & Co. [1935.| 168 pp. Illus. Tables. 20.5 cm, A list of references, pp. 143-146. Two copies on call-number 3939.426.
This card was printcé at the Basten SS Public Library December 4, 1935.
Do9285 — T.r. — Duodecimal system.