APA (7th ed.) Citation

Spyri. (1993). Heidi. Grandreams Limited.

Chicago Style (17th ed.) Citation

Spyri. Heidi. London: Grandreams Limited, 1993.

MLA (8th ed.) Citation

Spyri. Heidi. Grandreams Limited, 1993.

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