治山綠化30年史
By: [Chʻisan Nokhwa 30-yŏnsa Pʻyŏnchʻan Wiwŏnhoe pʻyŏn
Publisher: Hanʾguk Imjŏng Yŏnʾguhoe
Published: 1974
Place of publication: Sŏul
Language: kor
Number of pages: 1116
Subjects: Forests and forestry; Reforestation
Other titles: Chʻisan nokhwa 30-yŏnsa
Notes: Includes bibliographies.