Drakeford, J. (1967). The awesome power of the listening ear. Word Books.
Cita Chicago (17th ed.)Drakeford, John. The Awesome Power of the Listening Ear. Texas: Word Books, 1967.
Cita MLA (9th ed.)Drakeford, John. The Awesome Power of the Listening Ear. Word Books, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.