Halls, K. M., & Heller, J. (2015). Courageous canine and more true stories of amazing animal heroes (Unabridged.). Recorded Books Inc..
Cita Chicago Style (17a ed.)Halls, Kelly Milner, y Johnny Heller. Courageous Canine and More True Stories of Amazing Animal Heroes. Unabridged. Prince Frederick: Recorded Books Inc., 2015.
Cita MLA (8a ed.)Halls, Kelly Milner, y Johnny Heller. Courageous Canine and More True Stories of Amazing Animal Heroes. Unabridged. Recorded Books Inc., 2015.
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