Gerg, A. (2008). How not to go Broke at 102! Achieving Everlasting Wealth. John Wiley & Sons, Inc.
Dyfyniad Arddull ChicagoGerg, Adriane. How Not to Go Broke At 102! Achieving Everlasting Wealth. John Wiley & Sons, Inc, 2008.
Dyfyniad MLAGerg, Adriane. How Not to Go Broke At 102! Achieving Everlasting Wealth. John Wiley & Sons, Inc, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.