Lua APA (7ú heag.)

Barrett, H. (1981). Practical uses of speech communication (5th ed.). Holt, Rinehart and Winston.

Lua i Stíl Chicago (17ú heag.)

Barrett, Harold. Practical Uses of Speech Communication. 5th ed. New York: Holt, Rinehart and Winston, 1981.

Lua MLA (9ú heag.)

Barrett, Harold. Practical Uses of Speech Communication. 5th ed. Holt, Rinehart and Winston, 1981.

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