Title: 2-chʻa haek sirhŏm ihu Pukhan-Chungguk kwanʼgye ŭi pyŏnhwa wa hamŭi /
Authors: Yi, Chong-sŏk.; Sejong Yŏn'guso (Korea)
Year: 2012
Subjects: Korea (North) Foreign economic relations China.; China Foreign economic relations Korea (North)