Haugen, R. A. (1997). Modern investment theory/4ed (4th ed.). Prentice-Hall of India.
Dyfyniad Arddull ChicagoHaugen, Robert A. Modern Investment Theory/4ed. 4th ed. New Jersey: Prentice-Hall of India, 1997.
Dyfyniad MLAHaugen, Robert A. Modern Investment Theory/4ed. 4th ed. Prentice-Hall of India, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.