Ehninger, D. (1986). Principles and types of speech communication (10th ed.). Scott, Foresman.
芝加哥风格引文Ehninger, Douglas. Principles and Types of Speech Communication. 10th ed. Glenview, Ill.: Scott, Foresman, 1986.
MLA引文Ehninger, Douglas. Principles and Types of Speech Communication. 10th ed. Scott, Foresman, 1986.
警告：这些引文格式不一定是100％准确.