Cita APA (7th ed.)

Adobe Creative Team. (2009). Adobe Photoshop CS4. AdobePress.

Cita Chicago (17th ed.)

Adobe Creative Team. Adobe Photoshop CS4. Berkeley, Calif: AdobePress, 2009.

Cita MLA (9th ed.)

Adobe Creative Team. Adobe Photoshop CS4. AdobePress, 2009.