TY  - BOOK
ED  - Korea National Commission for UNESCO II.Corea. Ministry of Foreign Affairs.
TI  - Low-cost science and technology materials at the senior middle school lower grades level: examples of national institutions of Democratic People's Republic of Korea, People's Republic of China and Brasilia
PY  - 1990///
CY  - Korea
PB  - Ministry of Foreing Affairs, National Commission for UNESCO
ER  -