Tohutoro APA (7th ed.)
Willingham, R. L. (1968). How to speak so people will listen. Word books.
Tohutoru Kātū Chicago (17th ed.)
Willingham, Ronald L. How to Speak so People Will Listen. Word: Word books, 1968.
Tohutoro MLA (9th ed.)
Willingham, Ronald L. How to Speak so People Will Listen. Word books, 1968.
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