APA Citation

Spyri, J. (1994). Heidi. London: Puffin Books.

Chicago Style Citation

Spyri, Johanna. Heidi. London: Puffin Books, 1994.

MLA Citation

Spyri, Johanna. Heidi. London: Puffin Books, 1994.

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