APA (7th ed.) Zitazioa
Barden, N., & Williams, T. (2007). Words and symbols: Language and communication in therapy. Open University Press.
Chicago Style (17th ed.) Zitazioa
Barden, Nicola, eta Tina Williams. Words and Symbols: Language and Communication in Therapy. Maidenhead: Open University Press, 2007.
MLA (9th ed.) Zitazioa
Barden, Nicola, eta Tina Williams. Words and Symbols: Language and Communication in Therapy. Open University Press, 2007.
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