APA (7th ed.) Citation

Schonfeld, S., & Ross, A. J. (2019). Birthday on Mars! Penguin Workshop.

Chicago Style (17th ed.) Citation

Schonfeld, Sara, and Andrew J. Ross. Birthday on Mars! New York: Penguin Workshop, 2019.

MLA (8th ed.) Citation

Schonfeld, Sara, and Andrew J. Ross. Birthday on Mars! Penguin Workshop, 2019.

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