Cita APA (7a ed.)

Spyri, J. (2012). Heidi. New Central Book Agency.

Cita Chicago Style (17a ed.)

Spyri, Johanna. Heidi. Kolkata: New Central Book Agency, 2012.

Cita MLA (9a ed.)

Spyri, Johanna. Heidi. New Central Book Agency, 2012.