Williams, J. B. (1956). Theory of investment value/2e (2nd ed.). North Holland.
Dyfyniad Arddull ChicagoWilliams, John Burr. Theory of Investment Value/2e. 2nd ed. Amsterdam: North Holland, 1956.
Dyfyniad MLAWilliams, John Burr. Theory of Investment Value/2e. 2nd ed. North Holland, 1956.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.