APA (7th ed.) Citation

(1997). 21 segi rŭl yŏnŭn Han'gugin ŭi kach'igwan (Ch'op'an.). Sohwa.

Chicago Style (17th ed.) Citation

21 Segi Rŭl Yŏnŭn Han'gugin ŭi Kach'igwan. Ch'op'an. Sŏul: Sohwa, 1997.

MLA (9th ed.) Citation

21 Segi Rŭl Yŏnŭn Han'gugin ŭi Kach'igwan. Ch'op'an. Sohwa, 1997.

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