Booth Wayne C. (2016). Craft of Research (4th.). Uni.of Cicago.
Chicago Style aipamenaBooth Wayne C. Craft of Research. 4th. USA: Uni.of Cicago, 2016.
MLA aipamenaBooth Wayne C. Craft of Research. 4th. Uni.of Cicago, 2016.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.