Urban, H., & Runger, N. (2004). Positive words, powerful results: Simple ways to honor, affirm, and celebrate life (Unabridged.). Recorded Books Inc..
Cita Chicago Style (17a ed.)Urban, Hal, y Nelson Runger. Positive Words, Powerful Results: Simple Ways to Honor, Affirm, and Celebrate Life. Unabridged. Prince Frederick: Recorded Books Inc., 2004.
Cita MLA (8a ed.)Urban, Hal, y Nelson Runger. Positive Words, Powerful Results: Simple Ways to Honor, Affirm, and Celebrate Life. Unabridged. Recorded Books Inc., 2004.
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