London,, S. (1998). Adobe Photoshop 4: Interactive course (With CD-ROM). Techmedia.
Chicago Edition CitationLondon,, Sherry. Adobe Photoshop 4: Interactive Course (With CD-ROM). New Delhi: Techmedia, 1998.
Cita MLALondon,, Sherry. Adobe Photoshop 4: Interactive Course (With CD-ROM). Techmedia, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.