APA (7th ed.) Zitazioa
WALD, I., & ET AL. (1996). FOLLOW-UP STUDIES OF A REPRESENTATIVE SAMPLE OF CHILDREN WITH SEVERE MENTAL HANDICAP IN POLAND.
Chicago Style (17th ed.) Zitazioa
WALD, I., eta ET AL. FOLLOW-UP STUDIES OF A REPRESENTATIVE SAMPLE OF CHILDREN WITH SEVERE MENTAL HANDICAP IN POLAND. 1996.
MLA (9th ed.) Zitazioa
WALD, I., eta ET AL. FOLLOW-UP STUDIES OF A REPRESENTATIVE SAMPLE OF CHILDREN WITH SEVERE MENTAL HANDICAP IN POLAND. 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.