Yŏngsan-gang kaebal
By: [pʻyŏnjip, Yŏngsan-gang Kaebal Chi Pʻyŏnchʻan Wiwŏnhoe].
Publisher: Nongsusanbu; Nongŏp Chinghŭng Kongsa
Published: 1979
Language: kor
Number of pages: 659