APA Citation

 Romaniello, S. (2006).  Photoshop CS2 visual encyclopedia.  Wiley.

Chicago Style Citation

 Romaniello, Stephen.  Photoshop CS2 Visual Encyclopedia.  Wiley, 2006.

MLA Citation

 Romaniello, Stephen.  Photoshop CS2 Visual Encyclopedia.  Wiley, 2006.

Warning: These citations may not always be 100% accurate.