Litosseliti, L. (2003). Using focus groups in research. Continuum.
Chicago Style aipamenaLitosseliti, Lia. Using Focus Groups in Research. London ; New York: Continuum, 2003.
MLA aipamenaLitosseliti, Lia. Using Focus Groups in Research. Continuum, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.