Johnsson, H. (1990). Professional communications--for a change. Prentice Hall.
芝加哥风格引文Johnsson, Hans. Professional Communications--for a Change. New York: Prentice Hall, 1990.
MLA引文Johnsson, Hans. Professional Communications--for a Change. Prentice Hall, 1990.
警告：这些引文格式不一定是100％准确.