APA (7th ed.) Zitazioa
Zimmerman, G. I. (1977). Speech communication: A contemporary introduction (2nd ed.). West.
Chicago Style (17th ed.) Zitazioa
Zimmerman, Gordon I. Speech Communication: A Contemporary Introduction. 2nd ed. St. Paul: West, 1977.
MLA (9th ed.) Zitazioa
Zimmerman, Gordon I. Speech Communication: A Contemporary Introduction. 2nd ed. West, 1977.
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