Sillae hwan'gyŏng kwa kŏn'gang
By: [chipp'l Sim Il-ch'ŏl]
Publisher: Inmin Pogŏnsa
Published: 2009
Place of publication: [P'yŏngyang]
Language: kor
Number of pages: 119
ISBN-13: 9789946404080
Subjects: Indoor air pollution; Research
Notes: Cover title.