APA-ийн эшлэл(7 дахь хэвлэлт)

Birkland, J. L. H. (2019). Gerontechnology: Understanding older adult information and communication technology use. Emerald Publishing Limited.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Birkland, Johanna L. H. Gerontechnology: Understanding Older Adult Information and Communication Technology Use. Bingley, U.K.: Emerald Publishing Limited, 2019.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Birkland, Johanna L. H. Gerontechnology: Understanding Older Adult Information and Communication Technology Use. Emerald Publishing Limited, 2019.