Söderpalm, E. (1979). Speech errors in normal and pathological speech. LiberLäromedel/Gleerup.
Chicago Style aipamenaSöderpalm, Ewa. Speech Errors in Normal and Pathological Speech. Lund: LiberLäromedel/Gleerup, 1979.
MLA aipamenaSöderpalm, Ewa. Speech Errors in Normal and Pathological Speech. LiberLäromedel/Gleerup, 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.