Nahin, P. J. (2002). An imaginary tale: The story of [the square root of minus one]. Hyderabad University.
Dyfyniad Arddull ChicagoNahin, Paul J. An Imaginary Tale: The Story of [the Square Root of Minus One]. Hyderabad: Hyderabad University, 2002.
Dyfyniad MLANahin, Paul J. An Imaginary Tale: The Story of [the Square Root of Minus One]. Hyderabad University, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.