00834nam a2200241 c 4500001001500000005001500015008004100030040001900071041001300090049004300103052002200146056001400168082001600182100004800198245007900246260003600325300003300361502009000394653003900484950002100523963002300544965002500567KDM198612558  19941012201359861110s1986    ulka       AK 000   kor    a011001c0110010 akorbeng0 lEM539823lEM539824c2lEM540767c3fDM01a539.93b이474ㅊ  a539.93230 a628.1612191 a이영신,g李英信,d1961-0KAC20183130010a淸州取水源의 窒素 및 燐濃度에 關한 調査硏究/d李英信  a서울:b서울大學校,c1986  a32p.(접지):b삽도;c26cm0 a학위논문(석사) --b서울大學校 保健大學院:c環境保健學科,d1986   a청주취수원a질소a인농도0 a비매품b\2300  a환경보건학과  a수질오염z청주