APA (7th ed.) Citation

Spyri, J. (1962). Heidi. Macmillan.

Chicago Style (17th ed.) Citation

Spyri, Johanna. Heidi. New York: Macmillan, 1962.

MLA (9th ed.) Citation

Spyri, Johanna. Heidi. Macmillan, 1962.