Drakeford, J. (1967). The awesome power of the listening ear. Word Books.
Lua i Stíl Chicago (17ú heag.)Drakeford, John. The Awesome Power of the Listening Ear. Texas: Word Books, 1967.
Lua MLA (9ú heag.)Drakeford, John. The Awesome Power of the Listening Ear. Word Books, 1967.
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