APA (7th ed.) Citation

Yi, P. (1961). Gug-sa: [go-deung hag-gyo yeog-sa]. Ilchogak.

Chicago Style (17th ed.) Citation

Yi, Pyŏng-do. Gug-sa: [go-deung Hag-gyo Yeog-sa]. Seoul: Ilchogak, 1961.

MLA (9th ed.) Citation

Yi, Pyŏng-do. Gug-sa: [go-deung Hag-gyo Yeog-sa]. Ilchogak, 1961.