Spyri, J., & McDonough, J. (1996). Heidi (Unabridged.). Recorded Books Inc..
Cita Chicago Style (17a ed.)Spyri, Johanna, y John McDonough. Heidi. Unabridged. Prince Frederick: Recorded Books Inc., 1996.
Cita MLA (8a ed.)Spyri, Johanna, y John McDonough. Heidi. Unabridged. Recorded Books Inc., 1996.
Precaución: Estas citas no son 100% exactas.