APA (7th ed.) Citation

Spyri, J. (2007). Heidi. Read! Publishing House.

Chicago Style (17th ed.) Citation

Spyri, Johanna. Heidi. Read! Publishing House, 2007.

MLA (8th ed.) Citation

Spyri, Johanna. Heidi. Read! Publishing House, 2007.

Warning: These citations may not always be 100% accurate.