APA (7th ed.) Citation

Ch'oe, H., & Ch'oe, Y. (2006). Koguryŏ rŭl iŭn Parhae. Chosŏn Ch'ulp'anmul Such'uripsa.

Chicago Style (17th ed.) Citation

Ch'oe, Hong-sik, and Yŏng-sŏn Ch'oe. Koguryŏ Rŭl iŭn Parhae. P'yŏngyang: Chosŏn Ch'ulp'anmul Such'uripsa, 2006.

MLA (9th ed.) Citation

Ch'oe, Hong-sik, and Yŏng-sŏn Ch'oe. Koguryŏ Rŭl iŭn Parhae. Chosŏn Ch'ulp'anmul Such'uripsa, 2006.

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