APA Citation

 Obermeier, B. (2010).  Photoshop CS5 all-in-one for dummies.  John Wiley & Son, Inc.

Chicago Style Citation

 Obermeier, Barbara.  Photoshop CS5 All-in-one for Dummies.  John Wiley & Son, Inc, 2010.

MLA Citation

 Obermeier, Barbara.  Photoshop CS5 All-in-one for Dummies.  John Wiley & Son, Inc, 2010.

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