Tʻongil puhwal ŭi kkum
Subtitle: Chʻilli Yi Kwang-nin Sŏnsaeng hŭisu kinyŏm
By: Wŏn Yu-han chiŭm.
Contributors: Yi, Kwang-nin.
Edition: Chʻopʻan
Series: Sirhak arirang chʻongsŏ -- 1
Publisher: Hyean
Published: 2001
Place of publication: Sŏul-si
Language: kor
Number of pages: 157