Harry, K. (1999). Higher education through open and distance learning. Routledge.
芝加哥风格引文Harry, Keith. Higher Education Through Open and Distance Learning. London ; New York: Routledge, 1999.
MLA引文Harry, Keith. Higher Education Through Open and Distance Learning. Routledge, 1999.
警告：这些引文格式不一定是100％准确.