Cita APA (7a ed.)

Eastaway, R., Wyndham, J., & Shore, B. (2002). How long is a piece of string?: More hidden mathematics of everyday life. Robson Books.

Cita Chicago Style (17a ed.)

Eastaway, Rob, Jeremy Wyndham, y Barbara Shore. How Long Is a Piece of String?: More Hidden Mathematics of Everyday Life. London: Robson Books, 2002.

Cita MLA (9a ed.)

Eastaway, Rob, et al. How Long Is a Piece of String?: More Hidden Mathematics of Everyday Life. Robson Books, 2002.