Karl W. Menninger

Number Words and Number Symbols: A Cultural History of Numbers.

S. E. Mann, Karl W. Menninger, Paul T. Broneer, 1970 .

Number Words and Number Symbols

T. Holyoke, Karl W. Menninger, Paul T. Broneer, 1978 .

Number Words and Number Symbols: A Cultural History of Numbers

Karl W. Menninger, Karl Menninger, 1971 .