Wilson, S. (1978). Informal groups: An introduction. Prentice-Hall.
芝加哥风格引文Wilson, Stephen. Informal Groups: An Introduction. Englewood Cliffs, N.J.: Prentice-Hall, 1978.
MLA引文Wilson, Stephen. Informal Groups: An Introduction. Prentice-Hall, 1978.
警告：这些引文格式不一定是100％准确.