Title: Kyŏnggi-do nae hasu chʻŏrijang hyŏnhwang chosa mit kodo chʻŏri pangbŏp yŏnʼgu =
Subtitle: The present status of sewage treatment plants in Gyeonggi-do and advanced treatment processes
Subjects: Sewage disposal plants, Environmental aspects of Sewage disposal plants
Places: Korea (South), Kyŏnggi-do