00657nam 2200217 k 4500001001300000005001500013008004100028020002500069020002200094040002700116056001300143090002000156100001400176245006600190260002700256300001700283440003400300653007700334950001100411049001700422KMO20060355620080819145037060218s2002 ulk 000 kor  a8985726846 :c\7,8001 a8985726854g44400 a123456c123456d146043 a420.124 a420.1b송68원1 a송은영10a원리를 알면 과학이 쉽다:b물리편/d송은영 저 a서울:b새날,c2002 a255p.;c22cm00a재미있는 과학교실;v1 a원리를a알면a과학a쉽다a물리편a재미있는a과학교실0 b\7,8000 lEM0000001509