APA (7th ed.) Citation

Holstein, J., Holstein, H., & Myung-sook. (1993). Introducing Seoul. Hollym International.

Chicago Style (17th ed.) Citation

Holstein, John, Hon Holstein, and Myung-sook. Introducing Seoul. Elizabeth, N.J: Hollym International, 1993.

MLA (9th ed.) Citation

Holstein, John, et al. Introducing Seoul. Hollym International, 1993.