Cita APA (7a ed.)

Spyri, J., Davenport, P. .., & Armino, M. (2011). Heidi. Oxford University Press.

Cita Chicago Style (17a ed.)

Spyri, Johanna, Paul .0 Davenport, y Monica Armino. Heidi. Oxford: Oxford University Press, 2011.

Cita MLA (8a ed.)

Spyri, Johanna, et al. Heidi. Oxford University Press, 2011.