Ehninger, D. (1986). Principles and types of speech communication (10th ed.). Scott, Foresman.
Čikaški stil citiranja (17. izdanje)Ehninger, Douglas. Principles and Types of Speech Communication. 10th ed. Glenview, Ill.: Scott, Foresman, 1986.
MLA način citiranja (8. izdanje)Ehninger, Douglas. Principles and Types of Speech Communication. 10th ed. Scott, Foresman, 1986.
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