APA (7th ed.) Citation

Hapka, C., Vandenberg, E., & Reid, G.. (2021). Silver and gold. Penguin Workshop.

Chicago Style (17th ed.) Citation

Hapka, Cathy, Ellen Vandenberg, and Gillian Reid. Silver and Gold. New York: Penguin Workshop, 2021.

MLA (9th ed.) Citation

Hapka, Cathy, et al. Silver and Gold. Penguin Workshop, 2021.