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1
Nelson, David L., 472.193-N425새 | 월드사이언스 | 2006 472.193-N425새,
2
Banks, Jerry., 003.3-B218d | Prentice Hall | 2001 003.3-B218d,
3
Nelson, David L, 481.1-N425y | W. H. Freeman and Company | 1993 481.1-N425y,
4
Nelson, David L., 427.6-N425c | American Chemical Society | 1987 427.6-N425c,