TY  - BOOK
ED  - Kwahagwôn Yôksa Yôn'guso
ED  - 과학원력사연구소
TI  - Chosôn t'ongsa
PY  - 1958///
CY  - P'yôngyang
KW  - History -- General
N1  - The vol.1 was published later than the vol. 2 in 1962
ER  -