APA (7th ed.) Zitazioa
Pettersson, R. (2013). Predecessors & pioneers. Institute for Infology.
Chicago Style (17th ed.) Zitazioa
Pettersson, Rune. Predecessors & Pioneers. Tullinge: Institute for Infology, 2013.
MLA (9th ed.) Zitazioa
Pettersson, Rune. Predecessors & Pioneers. Institute for Infology, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.