APA (7th ed.) Citation

Kelby, S., & Nelson, F. (2006). Photoshop CS2 killer tips. New Riders/Hayden.

Chicago Style (17th ed.) Citation

Kelby, Scott, and Felix Nelson. Photoshop CS2 Killer Tips. Indianapolis, Ind.: New Riders/Hayden, 2006.

MLA (9th ed.) Citation

Kelby, Scott, and Felix Nelson. Photoshop CS2 Killer Tips. New Riders/Hayden, 2006.