Acheson, D. (2002). 1089 and all that: A journey into mathematics. Oxford University Press.
Dyfyniad Arddull ChicagoAcheson, David. 1089 and All That: A Journey into Mathematics. Oxford: Oxford University Press, 2002.
Dyfyniad MLAAcheson, David. 1089 and All That: A Journey into Mathematics. Oxford University Press, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.