Tonggul
Subtitle: mul kwa sigan i pijŏnaen sinbi ŭi segye
By: U Kyŏng-sik chiŭm.
Edition: Chʻopʻan
Publisher: Chisŏngsa
Published: 2002
Place of publication: Sŏul-si
Language: kor
Number of pages: 64
Subjects: Caves -- Pictorial works.
Genres: Pictorial works.
Other titles: Samcheok international cave expo Korea 2002