Chirkʻon-saro putʻŏ punmal chirkʻon mit sanhwa chirkʻonyum ŭi chejo yŏnʼgu
By: yŏngu kigwan Kŭmsok, Yŏllyo Chonghap Yŏnʼguso.
Contributors: Kŭmsok, Yŏllyo Chonghap Yŏnʼguso (Korea)
Publisher: Kwahak Kisulchʻŏ; Chuhan Miguk Kyŏngje Hyŏpchochʻŏ
Published: 1968
Place of publication: [Seoul]
Language: kor
Number of pages: 39
Subjects: Zircon
Other titles: Punmal chirkʻon mit sanhwa chirkʻonyum ŭi chejo yŏnʼgu.
Notes: "Code no. REST-TF-68-2."

Legand in English.