Andrews, F. E. (1935). New numbers: How acceptance of a duodecimal (12) base would simplify mathematics. Harcourt, Brace and company.
Citace podle Chicago (17th ed.)Andrews, Frank Emerson. New Numbers: How Acceptance of a Duodecimal (12) Base Would Simplify Mathematics. New York: Harcourt, Brace and company, 1935.
Citace podle MLA (8th ed.)Andrews, Frank Emerson. New Numbers: How Acceptance of a Duodecimal (12) Base Would Simplify Mathematics. Harcourt, Brace and company, 1935.
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