APA (7th ed.) Citation

Rom, M. C., Hidaka, M., & Walker, R. B. (2022). Introduction to Political Science. OpenStax.

Chicago Style (17th ed.) Citation

Rom, Mark Carl, Masaki Hidaka, and Rachel Bzostek Walker. Introduction to Political Science. [Place of publication not identified]: OpenStax, 2022.

MLA (9th ed.) Citation

Rom, Mark Carl, et al. Introduction to Political Science. OpenStax, 2022.