Sultan, R. G. M. (1974). Pricing in the Electrical Oligopoly. Boston: Harvard University Press.
Dyfyniad Arddull ChicagoSultan, Ralph G. M. Pricing in the Electrical Oligopoly. Boston: Harvard University Press, 1974.
Dyfyniad MLASultan, Ralph G. M. Pricing in the Electrical Oligopoly. Boston: Harvard University Press, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.