Harwood, J. (2007). Understanding communication and aging: Developing knowledge and awareness. Sage.
芝加哥风格引文Harwood, Jake. Understanding Communication and Aging: Developing Knowledge and Awareness. Los Angeles, Calif: Sage, 2007.
MLA引文Harwood, Jake. Understanding Communication and Aging: Developing Knowledge and Awareness. Sage, 2007.
警告：这些引文格式不一定是100％准确.