Cita APA

 Rogers, D. (2006).  The 90% solution: Higher returns, less risk.  John Wiley & Sons.

Chicago Style Citation

 Rogers, David.  The 90% Solution: Higher Returns, Less Risk.  John Wiley & Sons, 2006.

Cita MLA

 Rogers, David.  The 90% Solution: Higher Returns, Less Risk.  John Wiley & Sons, 2006.