Cita APA

 Dorsey, A. H. (2007).  Active alpha: A portfolio approach to selecting and managing alternative investments.  John Wiley & Sons.

Chicago Style Citation

 Dorsey, Alan H.  Active Alpha: A Portfolio Approach to Selecting and Managing Alternative Investments.  John Wiley & Sons, 2007.

Cita MLA

 Dorsey, Alan H.  Active Alpha: A Portfolio Approach to Selecting and Managing Alternative Investments.  John Wiley & Sons, 2007.