00606nam a2200205 k 4500001001300000005001500013008004100028020002200069049002800091052001500119056001300134082001400147245004700161260003900208300003000247504004200277653001700319700005300336950001100389KMO20010041920180625164005010208s2000    ulka          001   kor    a8973382519g934300 lEM2229849lEM2229850c201a539.9b1-1  a539.9240 a628.522100a쉽게 쓴 환경과학/d이상훈 지음  a서울:b自由아카데미,c2000  avi, 305p.:b삽도;c26cm  a참고문헌: p.265-267, 색인수록  a환경과학1 a이상훈,g李相勳,d1950-0KAC2016003264aut0 b\13000