Cita APA (7th ed.)

Galer, M., & Andrews, P. (2009). Photoshop CS4: A guide to creative image editing. Elsevier/Focal Press.

Cita Chicago (17th ed.)

Galer, Mark, i Philip Andrews. Photoshop CS4: A Guide to Creative Image Editing. Amsterdam, Boston, London: Elsevier/Focal Press, 2009.

Cita MLA (9th ed.)

Galer, Mark, i Philip Andrews. Photoshop CS4: A Guide to Creative Image Editing. Elsevier/Focal Press, 2009.