Pʻyojun ondol mobŏm sigongpŏp
Subtitle: ondol kinŭngsa kangsŭp kyojae
Publisher: Tʻŭkhŏ Kaebal Yŏnʼguwŏn
Published: 1976
Place of publication: Sŏul Tʻŭkpyŏlsi
Language: kor
Number of pages: 42
Subjects: Hot-air heating; Dwellings; Heating and ventilation