The Gerontologist. The Gerontological Society of America.
Chicago-čujuhus (17. p.)The Gerontologist. The Gerontological Society of America.
MLA-čujuhus (9. p.)The Gerontologist. The Gerontological Society of America.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.