APA (7th ed.) Citation

Kelby, S. The Photoshop CS2 book for digital photographers.

Chicago Style (17th ed.) Citation

Kelby, Scott. The Photoshop CS2 Book for Digital Photographers.

MLA (9th ed.) Citation

Kelby, Scott. The Photoshop CS2 Book for Digital Photographers.

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