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Multilingual
1
Gardner, Herbert S., 326.14-G226a-안진홍 | NTC Business Books | 1989 326.14-G226a-안진홍,
2
Strother, Z.S., 381.39-S925i | University of Chicago Press | 1999 381.39-S925i,
3
Mustazza, Leonard, 747.1-M992s | Lewisburg | 1988 747.1-M992s,
4
Roney,Alex., 366.17-R772a | Wiley | 1996 366.17-R772a,
1
Central Intelligence Agency [, ]
2
US Environmental Protection Agency [, ]