APA-čujuhus (7. p.)
STOEL-GAMMON, C. (1998). PHONOLOGICAL DEVELOPMENT IN DOWN SYNDROME.
Chicago-čujuhus (17. p.)
STOEL-GAMMON, C. PHONOLOGICAL DEVELOPMENT IN DOWN SYNDROME. 1998.
MLA-čujuhus (9. p.)
STOEL-GAMMON, C. PHONOLOGICAL DEVELOPMENT IN DOWN SYNDROME. 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.