APA (7th ed.) Citation

Galer, M., & Andrews, P. (2004). Photoshop CS: Essential skills : a guide to creative image editing. Focal Press.

Chicago Style (17th ed.) Citation

Galer, Mark, and Philip Andrews. Photoshop CS: Essential Skills : A Guide to Creative Image Editing. Oxford: Focal Press, 2004.

MLA (9th ed.) Citation

Galer, Mark, and Philip Andrews. Photoshop CS: Essential Skills : A Guide to Creative Image Editing. Focal Press, 2004.

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