(1987). Research in developmental disabilities. Pergamon Press.
Chicago-čujuhus (17. p.)Research in Developmental Disabilities. New York: Pergamon Press, 1987.
MLA-čujuhus (9. p.)Research in Developmental Disabilities. Pergamon Press, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.