APA (7th ed.) Zitazioa
WETHERBY, A., & ET AL. (1990). COMMUNICATIVE PROFILES OF PRESCHOOL CHILDREN WITH HANDICAPS: IMPLICATIONSFOR EARLY IDENTIFICATION.
Chicago Style (17th ed.) Zitazioa
WETHERBY, A.M, eta ET AL. COMMUNICATIVE PROFILES OF PRESCHOOL CHILDREN WITH HANDICAPS: IMPLICATIONSFOR EARLY IDENTIFICATION. 1990.
MLA (9th ed.) Zitazioa
WETHERBY, A.M, eta ET AL. COMMUNICATIVE PROFILES OF PRESCHOOL CHILDREN WITH HANDICAPS: IMPLICATIONSFOR EARLY IDENTIFICATION. 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.