Kugŭn Yi Yang-sŏn sujip munhwajae /
Title in English on p. [4] of cover: Kuk-Eun Collection
[pʻyŏnjŏja Kungnip Kyŏngju Pangmulgwan].
- Sŏul Tʻŭkpyŏlsi : Kungnip Kyŏngju Pangmulgwan : Parhaengso Tʻongchʻŏn Munhwasa, 1987.
- 348 p. : ill. (some col.) ; 30 cm.