Lua APA (7ú heag.)
Barrett, H. (1973). Practical methods in speech. (3rd ed.). Rinehart Press.
Lua i Stíl Chicago (17ú heag.)
Barrett, Harold. Practical Methods in Speech. 3rd ed. San Francisco: Rinehart Press, 1973.
Lua MLA (9ú heag.)
Barrett, Harold. Practical Methods in Speech. 3rd ed. Rinehart Press, 1973.
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