Cita APA (7a ed.)

Paulos, J. A. (1998). Once upon a number: The hidden mathematical logic of stories. Basic Books.

Cita Chicago Style (17a ed.)

Paulos, John Allen. Once upon a Number: The Hidden Mathematical Logic of Stories. New York: Basic Books, 1998.

Cita MLA (9a ed.)

Paulos, John Allen. Once upon a Number: The Hidden Mathematical Logic of Stories. Basic Books, 1998.