APA aipamena

Helder, H. (2015). Photomaton & vox (6a ed.). Porto Editora.

Chicago Style aipamena

Helder, Herberto. Photomaton & Vox. 6a ed. Porto Editora, 2015.

MLA aipamena

Helder, Herberto. Photomaton & Vox. 6a ed. Porto Editora, 2015.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.