Pengilley, P. (1968). By word of mouth: A rehabilitation course in better hearing, lip reading and speech conversation, Australian triple approach. Australian Association for Better Hearing.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Pengilley, Patricia. By Word of Mouth: A Rehabilitation Course in Better Hearing, Lip Reading and Speech Conversation, Australian Triple Approach. [Melbourne: Australian Association for Better Hearing, 1968.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Pengilley, Patricia. By Word of Mouth: A Rehabilitation Course in Better Hearing, Lip Reading and Speech Conversation, Australian Triple Approach. Australian Association for Better Hearing, 1968.
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