APA (7th ed.) Citation

Ko, Y. (1981). Kankoku shi nyūmon. Kokusho Kankōkai.

Chicago Style (17th ed.) Citation

Ko, Yun-jong. Kankoku Shi Nyūmon. Tokyo: Kokusho Kankōkai, 1981.

MLA (9th ed.) Citation

Ko, Yun-jong. Kankoku Shi Nyūmon. Kokusho Kankōkai, 1981.

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