LEADER 00566cam a1100193 k 4500 001 20170600000000398 005 20170605114913 008 960911s1994 kn 000a kor 035 $a14402 049 1 $lBE0000030818$vv.1$fMS 085 $a3540 090 $6093-01$a509.11$b조53 093 0 $6090-01$aEM0000040907$vv.1$y01 100 1 $a윤명수 245 10$a조선과학기술발전사 :$b해방후편 1 /$d윤명수 저. 260 $a평양:$b과학백과사전종합출판사,$c1994. 300 $a259p. ;$c21 cm 506 $a일반 653 $a북한과학기술