APA (7e ed.) Bronvermelding

Harrington, R. (2009). Understanding Adobe Photoshop CS4: The essential techniques for imaging professionals. Peachpit Press.

Chicago (17e ed.) Bronvermelding

Harrington, Richard. Understanding Adobe Photoshop CS4: The Essential Techniques for Imaging Professionals. Berkeley, CA: Peachpit Press, 2009.

MLA (8e ed.) Bronvermelding

Harrington, Richard. Understanding Adobe Photoshop CS4: The Essential Techniques for Imaging Professionals. Peachpit Press, 2009.