Potter, D. (1970). Discussion: A guide to effective... (2nd.ed.). Wadsworth.
芝加哥风格引文Potter, David. Discussion: A Guide to Effective... 2nd.ed. California: Wadsworth, 1970.
MLA引文Potter, David. Discussion: A Guide to Effective... 2nd.ed. Wadsworth, 1970.
警告：这些引文格式不一定是100％准确.