Adobe Systems Incorporated and Licensors. (2000). Adobe Photoshop 6.0: User guide. Adobe Systems Incorporated.
Chicago-viite (17. p.)Adobe Systems Incorporated and Licensors. Adobe Photoshop 6.0: User Guide. California: Adobe Systems Incorporated, 2000.
MLA-viite (9. p.)Adobe Systems Incorporated and Licensors. Adobe Photoshop 6.0: User Guide. Adobe Systems Incorporated, 2000.
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