Cita APA (7th 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 (17th ed.)

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

Cita MLA (9th ed.)

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