(1999). Employment programs for persons with developmental disabilities.
Chicago-čujuhus (17. p.)Employment Programs for Persons with Developmental Disabilities. 1999.
MLA-čujuhus (9. p.)Employment Programs for Persons with Developmental Disabilities. 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.