Cita APA (7a ed.)

SPYRI, J. (2016). HEIDI. SCHOLASTIC INC.

Cita Chicago Style (17a ed.)

SPYRI, JOHANNA. HEIDI. NEW YORK: SCHOLASTIC INC, 2016.

Cita MLA (9a ed.)

SPYRI, JOHANNA. HEIDI. SCHOLASTIC INC, 2016.