電氣通信利用制度變遷史18851̃990年
By: [pʻyŏnchʻan mit pʻyŏnjip Kyŏngyŏng Kihoeksil Yokŭm Kihoekkuk]
Publisher: Hanʾguk Tʻongsin
Published: 1992
Place of publication: Seoul
Language: kor
Number of pages: 779
Subjects: Telecommunication; History
Other titles: Chŏnʾgi tʻongsin iyong chedo pyŏnchʻŏnsa, 18851̃990-yŏn
Notes: Includes bibliographical references (p. 779).