地熱
Subtitle: Si, hŭigok, supʻil
By: Hong Sŭng-ju chʻangjakchip
Publisher: Wŏlgan Munhaksa; chʻongpʻan Sejong Sŏwŏn
Published: 1974
Place of publication: Sŏul
Language: kor
Number of pages: 401
Other titles: Chiyŏl