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다국어입력
1
Hughes, G David, 321.6-H893s | South-Western Pub. co. | 1999 321.6-H893s,
2
McDonald, William J, 321.6-M478c | The Free Press | 1998 321.6-M478c,
3
Friedman, J W., 321.65-F899o | North-Holland Publishinh Company | 1977 321.65-F899o,