London,, S. (1998). Adobe Photoshop 4: Interactive course (With CD-ROM). Techmedia.
Chicago Style aipamenaLondon,, Sherry. Adobe Photoshop 4: Interactive Course (With CD-ROM). New Delhi: Techmedia, 1998.
MLA aipamenaLondon,, Sherry. Adobe Photoshop 4: Interactive Course (With CD-ROM). Techmedia, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.