貿易管理의改善을為한調查報告書
Subtitle: Suchʻurip kwalli mit suchʻul kŏmsa chedo
Publisher: Haengjŏng Kaehyŏk Chosa Wiwŏnhoe
Published: 1966
Place of publication: Sŏul
Language: kor
Number of pages: 104
Subjects: Commerce
Other titles: Muyŏk kwalli ŭi kaesŏn ŭl wihan chosa pogosŏ