地下鐵鍾路線및首都圈電鐵乗客實態調查
Subtitle: 1974.12
By: chosa yŏnʾgu kikwan Hanʾguk Kyŏngje Kaebal Hyŏphoe
Publisher: Sŏul Tʻŭkpyŏlsi
Published: 1974
Place of publication: Sŏul
Language: kor
Number of pages: 117
Subjects: Subways; Traffic surveys
Other titles: Chihachʻŏl Chongnosŏn mit sudokwŏn chŏnchʻŏl sŭnggaek siltʻae chosa
Notes: Reprint made to Sŏul Tʻŭkpyŏlsi.