Davis, M. (1980). Mathematically speaking. Harcourt Brace Jovanovich.
Cita Chicago (17th ed.)Davis, Morton. Mathematically Speaking. New York: Harcourt Brace Jovanovich, 1980.
Cita MLA (9th ed.)Davis, Morton. Mathematically Speaking. Harcourt Brace Jovanovich, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.