Adobe Creative Team. (2009). Adobe Photoshop CS4. AdobePress.
Chicago Style (17th ed.) CitationAdobe Creative Team. Adobe Photoshop CS4. Berkeley, Calif: AdobePress, 2009.
MLA (9th ed.) CitationAdobe Creative Team. Adobe Photoshop CS4. AdobePress, 2009.
Warning: These citations may not always be 100% accurate.