Oleary, Z. (2004). Essential guide to doing research. Vistaar Pub.
Chicago Style aipamenaOleary, Z. Essential Guide to Doing Research. London: Vistaar Pub, 2004.
MLA aipamenaOleary, Z. Essential Guide to Doing Research. Vistaar Pub, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.