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Multilingual
1
Weihrich, Heinz., 325-W419m | McGraw-Hill | 1993 325-W419m,
2
Skousen, K.Fred, 325.9-S628a-안진홍 | South-Western Pub. | 1993 325.9-S628a-안진홍,
3
Kroto, Harold W, 546.6-K93f | Pergamon Press | 1993 546.6-K93f,