APA (7th ed.) Citation

Spyri, J. ., Hall, E., & Leslie, C. (2017). Heidi. Puffin Books, an imprint of Penguin Random House LLC.

Chicago Style (17th ed.) Citation

Spyri, Johanna , Eileen Hall, and Cecil Leslie. Heidi. New York, New York: Puffin Books, an imprint of Penguin Random House LLC, 2017.

MLA (9th ed.) Citation

Spyri, Johanna , et al. Heidi. Puffin Books, an imprint of Penguin Random House LLC, 2017.