Rogers, D. (2006). The 90 % solution: Higher returns, less risk. Hoboken, NJ: John Wiley & Sons.
Dyfyniad Arddull ChicagoRogers, David. The 90 % Solution: Higher Returns, Less Risk. Hoboken, NJ: John Wiley & Sons, 2006.
Dyfyniad MLARogers, David. The 90 % Solution: Higher Returns, Less Risk. Hoboken, NJ: John Wiley & Sons, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.