Chʻilsimnyŏndae chigŏp
Series: Its Chigŏp gaidŭ sirijŭ -- 1
Publisher: Illyŏk Kaebal Yŏnʼguso
Published: 1971
Place of publication: [Sŏul]
Language: kor
Number of pages: 196
Subjects: Vocational education