APA (7th ed.) Citation

Yoon, S., Park, J., & Yoo, J. (2022). Beginning Korean 1. University of Iowa.

Chicago Style (17th ed.) Citation

Yoon, Sang-Seok, Joung-A Park, and Jeehae Yoo. Beginning Korean 1. [Place of publication not identified]: University of Iowa, 2022.

MLA (9th ed.) Citation

Yoon, Sang-Seok, et al. Beginning Korean 1. University of Iowa, 2022.