푸른하늘의뜻은
Subtitle: Yi Ŭn-sang sijojip
Publisher: Kŭmgang Chʻulpʻansa
Published: 1970
Place of publication: Sŏul
Language: kor
Number of pages: 263
Subjects: Sijo
Other titles: Pʻurŭn hanŭl ŭi ttŭsŭn