Ttanggul t'amsa 33-yŏn ch'ongjŏngni
Subtitle: 1974-2008
By: Yi Chong-ch'ang chŏ
Edition: 1-p'an
Publisher: Tŭlsum Nalsum
Published: 2008
Place of publication: Sŏul T'ŭkpyŏlsi
Language: kor
Number of pages: 231
ISBN-13: 9788995118054
Subjects: Tunnels; Underground areas; Excavation
Other titles: Ttanggul t'amsa samsipsamnyŏn ch'ongjŏngni :