Birkland, J. L. H. (2019). Gerontechnology: Understanding older adult information and communication technology use. Emerald Publishing Limited.
芝加哥风格引文Birkland, Johanna L. H. Gerontechnology: Understanding Older Adult Information and Communication Technology Use. Bingley, U.K.: Emerald Publishing Limited, 2019.
MLA引文Birkland, Johanna L. H. Gerontechnology: Understanding Older Adult Information and Communication Technology Use. Emerald Publishing Limited, 2019.
警告：这些引文格式不一定是100％准确.