Hengartner, W., & Theodoreseu, R. (1973). Concentration functions. Academic.
Dyfyniad Arddull ChicagoHengartner, W., and R. Theodoreseu. Concentration Functions. New York: Academic, 1973.
Dyfyniad MLAHengartner, W., and R. Theodoreseu. Concentration Functions. Academic, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.