APA (7th ed.) Citation

Yi, P., & Chŏng, I. (1957). P'yojun yetkŭl. Sin'gu Munhwasa.

Chicago Style (17th ed.) Citation

Yi, Pyŏng-gi, and In-sŭng Chŏng. P'yojun Yetkŭl. Sŏul: Sin'gu Munhwasa, 1957.

MLA (9th ed.) Citation

Yi, Pyŏng-gi, and In-sŭng Chŏng. P'yojun Yetkŭl. Sin'gu Munhwasa, 1957.

Warning: These citations may not always be 100% accurate.