APA (7th ed.) Citation

Kaufman, A., Kristoff, J., & Lu, M. (2018). Obsidio (First edition.). Alfred A. Knopf.

Chicago Style (17th ed.) Citation

Kaufman, Amie, Jay Kristoff, and Marie Lu. Obsidio. First edition. New York: Alfred A. Knopf, 2018.

MLA (8th ed.) Citation

Kaufman, Amie, et al. Obsidio. First edition. Alfred A. Knopf, 2018.

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