Cita APA

 Nations, S. (2014).  The complete book of option spreads and combinations: Strategies for income generation, directional moves, and risk reduction.  John Wiley & Sons, Inc.

Citación estilo Chicago

 Nations, Scott.  The Complete Book of Option Spreads and Combinations: Strategies for Income Generation, Directional Moves, and Risk Reduction.  John Wiley & Sons, Inc, 2014.

Cita MLA

 Nations, Scott.  The Complete Book of Option Spreads and Combinations: Strategies for Income Generation, Directional Moves, and Risk Reduction.  John Wiley & Sons, Inc, 2014.