LDR 00578nam a2200205zu 4500 008 090205n chi d 110 2 _612 _aKwahagwôn 110 2 _612 _a과학원 245 _602 _aKwahagwôn t'ongbo 245 _602 _a과학원통보 _b 260 _604 _aP'yôngyang 260 _604 _b과학백과사전출판사 504 _aNo.4 issue is missing 650 _aScience -- General -- DRK 866 0 _a1979 946 _a 947 _a34911 001 IFS60535 999 _c332149 _d332149 952 _z34911 _70 _c1 _40 _00 _660000156 _9196777 _yBOOK _10 _o6000/0156 _d2009-05-14 _aIFS