Birkland, J. L. H. (2019). Gerontechnology: Understanding older adult information and communication technology use. Emerald Publishing Limited.
Chicago-čujuhus (17. p.)Birkland, Johanna L. H. Gerontechnology: Understanding Older Adult Information and Communication Technology Use. Bingley, U.K.: Emerald Publishing Limited, 2019.
MLA-čujuhus (9. p.)Birkland, Johanna L. H. Gerontechnology: Understanding Older Adult Information and Communication Technology Use. Emerald Publishing Limited, 2019.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.