Adobe Creative Team. (2008). Adobe Photoshop CS4. AdobePress ; Pearson Education [distributor].
Cita Chicago Style (17a ed.)Adobe Creative Team. Adobe Photoshop CS4. San Jose, Calif. : London: AdobePress ; Pearson Education [distributor], 2008.
Cita MLA (8a ed.)Adobe Creative Team. Adobe Photoshop CS4. AdobePress ; Pearson Education [distributor], 2008.
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